I have also used so many different bags (buy and sell until cannot count).
I started with
Lowepro stuff - Photorunner, Fastpack200
Crumpler 6 and 7 million
Tamrac Adventure 7 camouflage
Domke F3-x sand, olive, rugged wear. Domke F2, F803 all rugged wear
Billingham L2, Hadley (small, original, pro) in various color combi - khaki,black,black n tan,sage n tan.
Thinktankphoto UD50, Shapeshifter
ArtistNArtisan ACAM 1100,3000
Brady Ariel Large (Black but brass studs)
All's got its pros and cons, quirks. Some too big, some too small, some just nice but you'll need to carry the tripod in another bag (usually so for shoulder bags). My personal favourites are still the Tamrac Adventure 7 camouflage, F-803 Rugged wear and the Hadley Pro Sage (when seasoned). But they were all sold sold sold. It's absolute madness, I know.
These days, I am using a brady gelderburn (in khaki) which isn't a camera bag, but with a insert (goes well with billingham ones) it'll serve as 1 and it even houses my travel tripod (T025). With a laptop sleeve it'll serve as a work bag and I currently using it for work. I'll post some photos of it with its contents when I am stuck at home instead of shooting some landscapes outside.
I have an older PORTER messenger (small) which I DIYed a little to house a Domke 3 compartment insert, which is really good for smaller setups and when you don't want to carry too much gear. You'll be surprised just a little DIY on your part, you may just have something unique that suits your needs.
This one, the velcros were sewn onto the sides of the bag to match those on the Domke Insert. The LR44 batts aren't for the GXR setup. It's just in case I bring my film setup out, and run out of batts.