Kuat NV
I've owned most of the platform-type bike racks. To include:
The Thule T2
A 1upusa
Kuat NV
My favorite of the 3 is the Kuat NV. It's all aluminum and VERY nicely made. Solid. It's the easiest of the 3 to install with an expanding wedge.
My 2nd fave is the old Thule T2. It was rock solid, and I actually still own it. It was super heavy, and a pain to install/remove. Otherwise, it's great. I would buy one again.
Contrary to what most people will say, I owned but didn't like the 1upusa rack. I returned it. Yes, it was all aluminum and very trick (it folds into a tiny little package). But, I thought it was wiggly and alarmingly bouncy on the back of the 4runner. There was a lot of movement back there. Plus, I didn't really like the way the arms came down over the front and rear tire. It just didn't seem very secure. I like the hook-type arms (thule, kyat) much better.
Buy a Kuat NV or Thule T2 platform rack. Either will do you fine.