Looking at your roster, I’d suggest that you have far too many 1s on roster. You only “need” one of them, and there are at least 3 that will do the job alone(juggernaut, Iron Man, or Spider-Man can easily solo the ddq node). I have a fully covered but only level 40 1 spider-man that I use to solo DDQ. I would also encourage you to spend all your iso on one character at a time to start champing them. Ideally you’d start with characters that get fed by your 2* champs so you can begin earning “compound interest” as it were, but you could just champ them in whatever order and start to see a difference right away.
That aside, here are some interesting 3* teams you could try fielding (this thread is a cool window into various play styles I find, kind of fun to see the advice you’re getting):
Wolverine (Patch)/Falcon/Hawkeye (Hawkguy) - fire off patch’s green, chase the purple strikes for Hawkeye. hawkeye generates red/blue AP in the background whenever you match away any enemy special. You can then choose to keep some of that AP in the bank so Falcon eats enemy specials, or just fire it off from Hawkeye. Falcon is mostly here to buff tiles and eat enemy specials, but you can do AoE on purple and drop defense tiles in a pinch. This team has 2 characters with great true heals, so it has a high survivability. Hawkeye and Patch are both fed by 2* characters, and are going to grow faster than other non-bonused characters.
Patch/Dr Octopus/Hawkeye → again, use patch’s green to create enemy strikes. Match them away, and Octopus will split them into friend attacks while Hawkeye gathers AP in the background. Keep Hawkeye doing his nonsense, or use Octopus to shuffle the board and destroy any extraneous tiles you have around.
Iron Fist/Luke Cage go really well together, and you can insert a number of third characters to that team depending on how you like to run them. I like to use SWitch as a battery for this team set to 3/5/5: Get purple for Fist, create tons of black. Keep using Fist’s purple once it changes to doing damage until you run out, then burn through all that black you have stored up with Cage. It doesn’t take too long to have 24+ black AP in the bank with this team. Use SWitch’s green situationally to accrue a few more AP in some color you want if you’re just short of firing a power, or use it with Fist to make strikes
Same team, but you can try swapping out SWitch for Mystique to get an active blue → Mystique’s blue creates black and purple, which is not as effective as using SWitch to create all purple, but helps the team just the same.
Same team, but replace Mystique with Falcon. he buffs everybody’s shields on yellow, uses the blue to eat enemy specials, and you can safely burn all that yellow with Cage’s uppercut.
Blade/Falcon are an excellent duo. Put them with any third that creates strike tiles. Daken or Patch probably. Blade’s attack tiles do pretty big damage for the tier once enough strikes are on the board (as much as 1k each if 6 friendly strikes are in play), and his black does damage with minor ongoing AP denial until the repeater gets matched away. Daken gives you an active blue, but Blade’s specials happen on colors that Patch will use to create opponent specials; you’ll need to manage that when you fire off your powers so it works to your advantage rather than your detriment (meaning if all the reds on the board are full of friendly strikes, patch can’t put down enemy ones, or if all the purples are full of enemy strikes, Blade can’t create attacks so use the powers in the right order).