I have only used a 'BOB', and do not see much need to try a different trailer. I have 2, both at least 10 years old. Used the same ones on 26" MTB frames and also 700C road frames.
I like the idea of the majority of your items 'behind' you. Nothing to get run over, caught in your spokes, wrapped around your forks etc. The other benefit is wind. A 'BOB' drafts behind you, low and streamlined out of the way. The wind does not push you around like with bags on your forks either. Plus your center of gravity is lower than with bags. Also nice to pull up to your camping spot and pull (2) pins and it is off.
I put an additional rear rack over the fender of my 'BOB' and use a set of small dog panniers with the rack. Yes, you need to makeshift a flat 1" steel bar from the front of the rack down to the floor of the Bob cage, but it is a great addition.
The weight issue, I am OK with; that verses fighting the Wind and the potential for things near my spokes.....