Well there is ups and downs to that like everything. Yes we'd have 1 champ per weight division, but if boxing was run in organizations, like MMA is, we would miss out on a lot of great matchups.

For anyone who has followed MMA for a few years, you'll remember the Pride/UFC rivalry. There were great fighters and champs in both orgs, but because they were different organizations, the potential fights were limited. Whereas in boxing, anyone can fight anyone as long as both camps agree on the purse split.