I am liking the functionality of the 5 over the 3, but then again not sure how much I'll use the additional menu items that much. But it's a little more intuitive to navigate the menus on the 5. I'm looking forward to fiddling with a 3+ for a bit...
Haven't messed with the 5+ much, but I think that's what Brad has? We're hooking up on Monday to program his.