My favorite guitar maker has varied over the years. When I first started playing I thought Fenders were great. But then I played Ibanez for a few years.
Right now I really like ESP guitars, I have the LTD Alexi Laiho signature model and I love it.
But if I had to pick a favorite I'd go with Gretsch, I've been on a big rockabilly and psychobilly kick for the last couple years, I bought a Gretsch guitar last year and I love it. Great sound, plays amazingly well, I can't say anything bad about it.