I mostly scrap 12x12--I use a lot of photos, and more fit on a 12x12 page. I've rediscovered 8.5x11 recently, mainly because it fits smaller photos nicely. Here's a recent page:
I like how I could fit the two wallet sized photos and leave not-too-much white space. I love me some white space, but not when it's a void. I used my July Studio Calico kit for this page, dipping into my stash for the blue cardstock. I love the combo of blue, yellow, and orange. Happy colors.