Bridgestone. Not available up here
Adams. I have always found something else I enjoy
Titliest. never really interested me and I find stuff I enjoy more when I'm trying out clubs
Srixon. Weren't available here when I was buying
Adams: Never had a chance to demo one.
Nike: Just can't make myself buy any of their gear.
Srixon: Never even seen their clubs. Like the their golf ball selection.
Wilson: Never seen any other than cheapish Walmart sets.
I've owned one Taylormade putter. That lasted about a month. I also bought a used Bridgestone hybrid to try out.
Callaway. Ive just never been impressed with anything theyve ever made. Ive tried various Callaway clubs over the years and just have never liked them. Theyre very meh to me.
Srixon, Wilson, Adams, Ping and Cobra have never been in my bag or on my person, ever. Though I have pondered Srixon, Adams and Cobra before, just never pulled the trigger.
Titleist is the big one that sticks out for me in that list. Around here, it's sacrilege to not play their balls or clubs, but I've never seen their clubs and thought "oh wow, I have to hit that!"