So this topic is floating around community, thought I'd give my ramble opinion on it.

Colossal I'd say is the weakest.

Eren is kind of a one trick pony. "Rawr" *Charges*
Reiner was shown using similar straight forward tactics, I believe Eren remarks upon him using nothing but offense, could be wrong, been a while.

The agility the dancing gets from her size is significant. My only issue is if she could get through the armor of Reiner.
And Annie, I think she has the best overall stats with a well rounded fighting style, in the anime Eren gets the better of her because he came out of nowhere with a...