What is your favorite web host for business

I have been looking around at different things like smugmug, photobiz etc... for the past 6 months everything I have been doing has just been posted on my dphoto (I really like the galleries) and I get my business from word of mouth. I want to get a website to start doing more Search engine optimization, include pricing, printing services are not as important to me as I like to do my own printing, however some sort of invoice system would be great. I dont want this to turn into a war on whats better I just want to know why you like ____
Thanks!

I've been using Photoshelter. I like it.

Very happy Zenfolio user here.

tried photoshelter but the photoselling side of things are not up to par as to what companies like zenfolio and smugmug offer. Thus, I have an external front side and a zenfolio selling. Nice and simple.

@CanonNoob Thats the route I was thinking about going. An ex employer of mine used photobiz and the customer service was unbeatable.