So do people cone up with strays on their own or is it mostly emulation of top tier (professional) players?
I had some comp games yesterday, most of them actually, where I found myself the only healer on the team. The other players even recognized that we were at a disadvantage to the currently typical Lucio+Zenyatta comps we were seeing but it only resulted in one other player going healer at the eleventh hour in one game.
Depending on team comp (and always on Control maps) I usually picked Lucio but Mercy still had her fair share of victories.
hmm..it's probably a mix. Lucio+Zen "generally" works, but Mercy on her own with another sub can work too. Zen+Mercy is where I question things heavily, since both are solo heals.
Defense heroes suck overall from personal experience- we don't do well with them on our team and we can maime them on the other team.
As for playstyle? Never emulate, self teach (using others for optimization if you must) or you run the risk of becoming a failure at adaptation. I've never seen high level reaper gameplay except for once where I got annoyed that he completely failed his ult like a 50 or something.
Console meta=/=pc meta
Don't use widow on console unless you're the 1% of the 1%. In that case, please go to PC where you can go pro. Also don't think Pharahs trash, since shes harder to shoot inherently on console.
Edit: other things to note- reaper is probably more efficient since his rid range counters have worse aim, and McCree isn't as OP of a sniper. I've run into two crazy McCrees so far, and yes, you can tell when they're great.
Competitive is a different mess. Everyone might be competent but 80% of them only play DPS/Support. Top tier tanks are rare sadly.
QP is just a "team A is screwing around and all ex 60+'s, team B is new to this. Team A goes all Ana as offense and wins in under 3 minutes on offense" levels of stupidity.