I love topps bunt the most.
I play on topps huddle as well.
Topps marvel collect is pretty new. And I like it pretty well.
I do use panini dunk and to a lesser extent blitz.
I will PM you later with my user name
I do team trades about every day on bunt.
I on dunk and blitz I like the bid board style trading and auctions, but am not real good at navigating through person to person trades yet
In all these apps I do not spend money, just log on daily for the free coin awards and spend those on packs
Mark Z