its hard to say, for the most part i like the smaller weight classes. I would say my 4 favorite fighters right now are Donaire, Pac, JuanMa, and Marquez... but i'm also a huge fan of Vitali, Mosley, Hopkins, Kessler, Pascal, and Bute
Absolutly love watching elite Super Feather's in action , Barrera , Morales , Pacquiao , JM Marquez & co however all the elite fighters have for now left Super Feather . So for that reason Welterwight right now is where its at !!!!!!!!!!
MW-upwards is what i've always enjoyed the most. I like watching all weights but as I have no idea what its like being a little guy i've never got really into the smaller weights. I'd probably go with SMW overall as it looks great right now in terms of depth and exciting as there is no clear number 1... Also, being a Brit we have a storied history in the division.
HW's the best thing about boxing IMO is how the action can change dramatically with a punch or two and those things best happen with the big boys. Sick as it is KO"s are exciting and fun to watch.
Middleweight/Super Middleweight. Probably due to me being about the size to be a MW should I box. Although the Middlweight division has been ****-poor recently. Thank god the SMW's are picking up the slack.
I've always preferred the smaller weight divisions, faster more tactical fights, but really it depends on the fighters, any division can be great to watch. If I had to choose prob light or welter.