I love both, I stay on Facebook for hours and love to interact with my superstars on twitter, so for me both are equal.
I'm on facebook and recently added my business as a page "Snugfit flooring" ( feel free to have a look and comment) Theres another guy called sdc flooring whose pics are amazing and his work looks class. Also the BIG trade body that charges lots have a page.
thats Scot's facebook page. He was in the compertistion at dometex (Germany ) on my team a few years ago.
im on facebook cs flooring it gets you noticed had a few orders from it links to our website which is better i think .
I have Twitter intergrated on my website and just use it to post photos of recent jobs, it's quicker and easier than getting my website updated each time. I post occasionally on a twitter site for Bath and they retweet to their 3000 followers, effectivly advertising to 3000 of my target market....for free, and I've had a couple jobs from it! It can go wrong though, I stupidly asked if anyone knows a good laminate fitter they recommend to help me out when I was busy, when I work out how to post a picture you wont believe what you see! There's something about Facebook that I don't like and I don't use it, probably because I met my wife on there!