Two months ago I was in the already apart of the closed beta for Champions Online. Two months ago I was fortunate to receive a beta code to participate in the Aion closed beta weekend events that would happen about every other weekend.
Two months ago I though Champions not a good game; it did not run well, I didn't understand the combat, and I was just bored. Two months ago I was blown away at how much I liked Aion; the game performed really well, looks wonderful, and the combat is great.
Two months ago I was looking forward to Aion. Two months ago I though Champions Online was not as good as City of Heroes and had no interest in it what so ever.
What a difference two months makes.
I think Champions is a slightly flaw but fun game that I am enjoying greatly. The game still has some performance issues, but again it's just so much fun to play. Aion still looks great, runs better that CO does by a long shot, but I find myself bored after awhile.
As it is now I have way too many MMO subs going and I am going to need to make decisions on which one or two I am going to stay with, and right now I don't know if I would stay with Aion after the free month, we shall see.