Sooooo much good info, and I don't have time to reply to it all right now, and if I tried to quote everything it would be an absolute mess. There are a few things I want to ask about immediately, so I will just throw them out there.
1* Tokens: Why not open them? Does the game give you better odds of pulling a 2* or 3* if you wait until after story mode?
Sure, I could have built IM35, mStorm, and mBW 3x over now with all their overs I have pulled from tokens, but I have also pulled out some Ares covers, two Daken covers, 2 oBW covers, Thor** cover, mHawkeye cover, 2 Moonstone covers which I got 2 more through events and she was very helpful in a recent event, one sole PSYLOCKE cover (thanking the heavens for that one during this Ock event right now... big help tanking and I have only used her blue skill twice, at inappropriate times, but whatever...).
I did change the way I redeem tokens now, as when I did them as I collected them, I would get crap almost all the time. Now I open in batches of at least 5, and today I waited for 10. Seemed like I faired better, tho that may have all been an illusion.
PvP: I wasn't setting out to do PvP, then there was one 2 or 3-day event about 2 weeks ago, and I ran it from the beginning, and got pummeled into the ground during the last day (from ~280 back down to 110). Then I read an article by a D3 dev that was posted back in January or so, where he openly admits that their current PvP system is set up to favor latecomers (not sure how accurate that is today), so I decided to only get into them late and aspire towards the first or second progression reward (usually a 1* token). I still get hit with passing 3* L94 freight train, but since I got what I came for, it doesn't matter. Like the Lightning Rounds the last few days, I would start with 30mins left and try to get to 100, maybe 200, depending on match length (Ragnarok ones seem to take forever!!!).
My best outing thus far was the Deadpool event. With game lines blurring together and RL getting in the way, I forget if that was the Punisher reward or something else, but I did get into that one at the very beginning, and if it was Punisher, I was sooo stoked to hold on to a top 25 spot to get two covers. That was awesome!!! (Of course, that was also before I knew about brackets... :facepalm
BTW, is it just my bad memory, or did they tighten the 2 cover reward window for Doc Ock from Top 25 to Top 20???
Oh, and getting Colossus was pretty great, too, and then landing a second yellow cover was awesome and really helped me out during Gauntlet and the Real Steel PvP event. Wish I would have one of his attack skills, but for an entry level 3* bullet sponge, you can find no better.
Gee, this is ending up being a lot longer than I set out to type... oh, well...
So, my current high-end keepers are Colossus, Punisher, and Psylocke. I am hoping to get another IM40 cover out of this event, so I can keep him as well, but I wouldn't mind dumping lCap, Hulk, or lThor if I really needed the space. I was actually very happy to get Daken (he saved my butt in one of the recent events where he was a progression reward, since I had a node I could not pass until I after I earned him). Bagman is actually the first on the chopping block, unless I should keep him around until I finish Story mode, and I can dump Venom, Jugg, and Hawkeye*. I really only started collecting their covers after weeks of selling them individually, just to see how long it would take to get them all. Stupid, I know now, due to the lack of return on the "investment", but it is what it is.
And my roster is a little artificially nice... after the first event I had gotten to a point where I could not afford any more slots due to lack of hp (I had 150, and needed 400 for 3). I did not know how freely they give away hp through events, and then they did a bonus hp offer for the weekend (600 bonus at the $20 level), so I caved... I know... not very CAG of me... but I don't regret it since I did not have to sacrifice any of my 1* core and future 2* core that was just beginning (Ares, Wolverine) to be able to hold onto a few 3* that have now been great. And due to knowing that a sole 3* cover is usually crap (Colossus excluded, since his single yellow cover did make him the perfect sponge for a 2* team), I have toyed with the idea of keeping myself out of the top 100 on certain events just to score more Ares covers, since he seems to be the flavor of the month (I am presuming they change who the "runner-up" cover comes from... but almost all of the recent events seem to have been Ares), but I have yet to actually do that.
Correction: I did lose 2 covers that I had recruited due to not having the hp to redeem them in time: 1 cStorm and 1 HT**. Kinda miffed about losing the HT, esp with the current event, and I wish I had that cStorm since she is my highest leveled 2* char and would be that much closer to max covers... awesome glass cannon that is even more awesome alongside mnMag, and with both hiding behind Colossus' yellow, lol.
And yes, I have only used hp for slots. Nothing else. I did spend ISO on a 1* token once, but got a cover I didn't need, and that seemed to drown that idea real quick.
The only other thing I can thing of right now is what MMR is and how you affect it, that would be helpful. I read earlier here that the Simulator is where you go to lose your high ranking to be able to place in better brackets, but I am not sure how to do that.
Anyway, keep the advice coming, I truly appreciate it.