QfB I would guess is going to be a bit different experience mechanic wise, because Clank got captured, and thus have to play without him. But I think it's going to be cool anyways, it was a bit weird on Gladiator too but I got used to it pretty fast.
Don't worry about QFB. Missing Clank will be rewarded with a small but awesome
upgrade to Ratchet's wrench
Also, there will be a lot of great platforming, an one of the best (if not the best one) level in the series. Of course, I mean
Hoolefar Island.
Oh, and one more awesome feature. In one place in the game, you can change plot a bit, but to make it more payfull to you later, you must be cautious an remember about something, what happened before. Can't tell more about that, even spoilered Plot in QFB will also be pretty interesting, but humour will still not reach UYA. It will in ACiT. Beleive me, after watching QFB ending, you'll know why