Oooohhh... tough call. Unchained is definitely up there - but Superman/WW has been truly awesome IMO too.... (I realise it's only 2 issues in though, but Unchained is only 4, so... you know... not entirely unfair).... Also Earth-2 has got be interested now thanks to his inclusion, and I've been enjoying JL since it' launched in 2011. Action had a slow patch but over-all I also think it's been an awesome title and is only getting better at the moment.....
I abstain from voting....
#1-Action Comics Greg Pak brought fun into this book again. Both these last issues kick ass
#2-Batman/Superman Amazing work so far. Aside from problems with art and format It's been really good.
#3-Superman/Wonder Woman Im so pro Cliana that this book is a good read. I'm reading WW in trades and wish I had more. This book gives me more
#4-Smallville Fun book. I liked the Batman Smack down in volume 2.
#5-Unchained Overhyped and complicated at times. Still enjoy it but I think the Hype brings it down.
#6- Adventures Heart touching book. This is a book that any kid could read.
#7- Superman I still enjoy it but I agree that his work went down after H'el arc
Action is top for me followed by Smallville,then BM/SM, SM/WW and Earth 2(Only because Tom Taylor depicts what a truly evil,unrestrained Superman can do really well.) Adventures, then Justice League is 4th and Unchained is 5th for me cause i'm not a fan of a Super-man that bleeds and has his butt handed to him by the government every issue,hence the only reason I like Superman but that's last for me at the moment.
@theacidskull: Good point, I'd have to go with Unchained then although SM/WW and Action Comics are close. BM/SM had an amazing first arc, thought. Really hope that book pick's up, it is my favorite, after all.
Batman/Superman has been fun IMO, Action comics tho, LOVE IT!
Action Comics has had the best Superman appearance in the New 52 for me. Morrison's run has been one of the best on the character for a good few years and based on his first two issues, Pak looks set to do a very solid job as well. Unchained just comes in second since Snyder delivers an intriguing storyline playing on Superman's strengths as weaknesses along with a great use of Superman's supporting cast.