Except when art is really bad or really good, I don't really notice it. Actually for me the art of Batwoman was so good and so "artsy" that it actually distracted me from the story and I couldn't follow what was going on.
Gonna be in the way minority here, but I feel when they rebooted the universe they should have gotten rid of every robin but one and start over. Personally I would have loved it if Dick took over for Bruce and Bruce went to Earth 2, but for money reasons I know that's impossible.
Do agree with you that there's a vast amount of underused characters. Really bugged me in the past as there were enough titles out there to give more people a chance to shine. I'm hoping that all the Schism/Regenesis stuff sorts that issue out. Have to say though, if all the popular characters are to be given a chance to shine then your probably going to need all the titles out there!
Thats the thing though, they have all these characters floating around all these titles and they primarily focus on the ones that are already substantial
I would suggest reading X-Factor and New Mutants if you would like the spotlight shined on some secondary characters, also Wolverine and X-men is doing pretty good at introducing new characters as well.