I've seen a lot of people saying they're having trouble with shooting in recent weeks, specifically 3s. I've definitely had some games where nothing seems to want to drop, but generally I've shot really well from 3 recently. I'd guess I'm in the 40-45% range in recent weeks, mostly on open 3s. I'm not sure if I'm doing something different than others, if I've got my best shooters' releases down, or if I've just been really fortunate. In any case, I find Kawhi's shot to be pretty smooth and easy, and he's been money for me on open catch and shoot 3s thus far.
I'm with you on HOF Midrange Deadeye. That badge inparticular is super OP. If it's paired with HOF Difficult Shots, contested moving fadeaways fall at a crazy rate, almost like they're open shots. I didn't utilize the midrange much until I got Diamond Paul Pierce and noticed just how effective those shots are with that badge. Now it's a huge weapon.
I appreciate the love on the lineup. I got super lucky with packs I opened with VC I got on sale. I pulled 5 Playoff Performers Diamonds, then sold all but Shaq and made over a million MT. I realized later that if I sold some other pieces I had a shot at completing the set, so that's what I did. Anyone who has completed Playoff Performers will have a crazy good team just because there are historically great players at every position. You can run a PP only lineup of Magic/Jordan/Kawhi/Bird/Shaq and have arguably the best player in the game at every position on the floor, plus you'd still have Russell, Barry, Iggy and Kobe on the bench. It's a fantastic set.
As for Bird, I actually have shot pretty poorly with him, like 35% or so on 3s. Even after the patch, I'm having trouble with him despite having a lot of success in freestyle. It just hasn't translated to MTO yet. Luckily, he does so many other things well that he's still great even without hitting the percentage of 3s I expect him to hit. Hopefully I can adjust and he becomes the OP shooting powerhouse his badges and attributes say he should be.
As for your question, I'd definitely start with Magic. He's the best auctionable player in the game and is a mismatch against every single player he'll be matched up against. He's totally unguardable because he's huge for his position and he does everything at an elite level. He's also a lockdown defender. Shaq is also a monster, but there are some great bigs that can at least give him a run for his money. Bird is third on my list just because I haven't had as much success with him, but if I can get him going he should be the best stretch 4 in the game. He has the strength, Post IQ, and lat quickness to hold up down down low, and he's a good rebounder too.