I too switched from a tundra.
Being a "Toyota guy" it was hard for me to do but, the Ram is just a better truck. I can't think of one aspect that the tundra (even the new redesign) does better then the ram.
Maybe durability? The tundra IS one tough truck. By not changing there technology for such a long time they seem to have ironed all the bugs out.
That just wasn't enough to keep me though. Hope you get much enjoyment from your ED Ram!
Welcome.