Something I really miss in forums, is objectivity.
I don't mean disrespect, it's just an observation.
The OP asked opinions about 4x10"s and he's between Fender or Avatar.
Well, with that information, one must conclude that he likes 10" speakers and is on a budget, since Fender and Avatar are budget cabs.
So, he wants to know which of the two is better.
For the ones who like 10" speakers, even the best 15" won't serve him.
That's it, so easy. Unfortunately, it happens all the time here.
I'll soon post a topic about opinions on what cabs and amp I should buy to build my dream rig. But I'm reticent in doing it and not getting a clear answer. Well it might be just me being picky today. Ignore.
Well, now my opinion:
Based on what I've heard and reviews read, I'd vote for the Avatar.