1.) PBF vs. Oscar (147 or 154) - it's got all of the elements for FOTY (except for Hatton die-hards)
2.) Wlad vs. Sasquatch (201+) - you know it's coming I think the only way to fix the heavies is to get them to unify.
3.) Hatton vs. Castillo (140) - would be a barn-burner and the right fight style wise for both guys
4.) Darchinyan vs. Arce (11 - This would be easy for both to make weight and have more power.
5.) Quintana vs. Williams (147) - Skills vs. non-stop punching, gotta love that match-up
6.) Calzaghe vs. Kessler (16 - You know the arguments for this one
7.) Manfredo Jr vs. RJJ (16 - battle of the Juniors, up and comer vs. former great probably at the same skill level at this point.
8.) Gonzalez vs Vazquez 2 (122) - last one was great, big come from behind win FOTY in my opinion so far
9.) Kyowa vs. Calderon (105) - Settle who is the king of the division
10.)Guzman vs. Soto (130) - I just want to see this one alright?

there are tons of others, but these are the ones that stick out to me as being either really good or division defining fights.