Focus is BGs. Trying to Push for Higher Ranks. These are my current R4s

I have some hesitations on what I can see being the 3 most popular votes:
Photon - Was trying to wait till we heard info on the Patriot buff. He was intended to be a hard counter upon release, and with spider woman also in decks, more would be running him alongside Xbones, Mantis etc.
Yelena (unduped) - Thinking since I already have Nick at r4, it might make more sense to pick from a different class, in case I get a skill r4 gem later on. If I take her to rank 4, and get the skill gem, then the best option would be bullseye , but then i'd be looking at 3 skill defenders at r4, which seems like overload.
Serpent - already have a cosmic in thanos, but dont mind the r4 since if i get a cosmic gem later, i can just use it on dark phoenix. But with him in the WOF selector, and everyone having him, i feel like theyre going to release a lot more counters (and actual good ones). Nico also is coming out.