Amazon.com, hands down!

I love that website. When I have problems (rarely!), I was always helped quickly and to my satisfaction.

I like how results get personalized to my shopping habits, though I thought I wouldn't, but I really do pay attention to what it recommends and 9 times out of 10, they present things that I would buy if I had the money. I also like their daily deals and when I had Amazon Prime, I got items so quickly!

So, yeah. I'm like an amazon.com fangirl. Never had a big problem with them.