There are 10 tweener divisions and 10 possible choices. So, there is even the Bridgerweight for the sake of completeness.
Light Flyweight has some of my favourite battles of all of them (Chang vs Tokashiki etc). Super Flyweight was strong and full of talent for a ******* division, as was Super Feather and Light Welter. The rest don't appeal to me as much, though they all have fighters I really like. I voted Super Flyweight.
Nowadays I like Jr. Welterweight and Cruiserweight. Too me, 140 has almost always been a strong weight class with at least a couple of solid fighters competing at the same time.
I like super featherweight guys like Delahoya,Mayweather,Barrera,Pacquiao and Morales have all been there.
Cruiserweight because it's about the only one where I can justify its existence. Maybe super middleweight, too. 105 is a complete sham and the rest of them unnecessarily siphon talent away from the traditional divisions.
While they’ve hosted some great fights, I’m not a fan of any of them except for Cruiser. They’re unnecessary. (Although I do enjoy typing “badgerweight”.)
I picked it. I think it has the most interesting fights and fighters, although not the best. Even still, it is a very strong division with Gomez at its head and Morales, Fenech, Barrera, Rigo and Pacquiao as a solid side cast. Why I love it though, is because in it's relatively brief history, it's been host to some of the best fights ever. Morales vs Barrera I, Marquez vs Vazquez III (well, the first three in general), Gomez-Pintor and the Zaragoza-Banke trilogy. Then it's had a large assortment of die-hard battlers there which made for other great fights and could make for some mouth watering match-ups. Obviously you have guys like Morales, Zaragoza, Pacquiao, Pintor, W.Vazquez, etc; who you can always count on being fun to watch, but even on a lower level, SBW delivers massively. For instance, you have guys like Nestor Garza; Kiyoshi Hatanaka; or Mahyar Monshipour. I think it's one of the most enjoyable divisions ever, including the 'original eight'. Even today, it's an exciting division.
I hate them all. The canonical weight divisions with old fashioned weigh-ins are the only real divisions.
I'll go with the 140lb light welterweight division. From Canzoneri and Ross through Arguello and Pryor to Chavez, De La Hoya, Tszyu and finishing with Pacquiao and Crawford there have been a lot of great fights and great fighters.