I actually used Duke's Towing because they were the company that AAA called for me. At the time I drove a crap car and needed a tow service every once in awhile.
What I liked about Duke's--besides that it came pretty quickly--was that (1) they guy was clean...no dirt under the nails (gross), (2) he introduced himself to me (that might just be him though), and (3) he showed up with a female. At first I thought that was weird, but apparently after speaking with some people, it was for security since I was a female.
Maybe things are different now; that experience was when I was in college, but I'd like to think they're not--if it's the same owner anyway.