I wouldn't say I'm a brand loyalist, but I do prefer some over others, obviously. I have found the Nike Vapor pro combo irons to really fit my game and have been extremely happy with them. I own a Cobra 4 Hybrid that I hit really well and really like, and have a 2 year old titleist 913 driver that I won't give up until something happens to it. As far as clothing I tend to lean towards Cobra, Nike, and Under armour. But if it catches my eye and is comfy I wont steer away from other brands. For me it just whatever equipment feels best for my game, and whatever clothing I think fits my style.
Club wise I've been a Cobra guy. But have branched out with my Cleveland wedges. Clothing wise a mix of Puma, Oakley. Wear Titeist hats as they fit the best for me. But wouldn't shy away from wearing anything that looks good.
Never been a brand loyalist always had a mixed bag, I find one piece for the bag and can't match the rest. As for clothing I like many different styles from puma to Nike and even callaway. If it looks good I normally buy it.
I used to be the biggest Nike loyalist you could find. From my driver all the way down to my glove, Nike. Thats changed the more I've branched out and tried other equipment. Now im a mixed bag. Still prefer Nike clothes, but I've started owning a mox of everything