I'm not too picky about breeches provided they are comfortable and not too unaffordable.
I love my Kerrits. I have two pairs of full seat breeches, one for schooling and one for show, and I love them both. At over $100 though, I can't really justify buying more pairs. I do have a few pairs of their riding tights though, and I love them! Super comfortable, fit nicely, and cool in the summer. I'll be curious to see how well I can stand them alone in the winter though.
I also have a few pairs of Tuffriders, and while I find them super comfortable, the fit just isn't right. I wear a size 26 in most breeches, though I could probably do just fine in a 24 I don't like them too tight. My tuffrider 26s are borderline too tight in the waist, but the area underneath the waistband is super baggy. I guess they expect you to have more bulk down there and a slimmer waist!
I also have a couple pairs of miscellaneous knee patch pairs. I know that one of them is devon-aire x wear that I've had for an eternity, along with a pair of green ones with a big blue stretchy stripe down either side. Then there's a few pairs that my old barn owner gave me because she didn't like them.