I'm assuming (probably incorrectly) that the Henson is the king of razors with built in angles.
I mostly use a Gillette Fatboy or Slim, but there are times I just like using one where I don't have to focus, like for my daily work shaves.
Lately I have discovered the awesomeness of the Schick Krona, and I'm using an NOS one I bought on ebay.
I started thinking about other built in razors that I have versus what I still want to try.
The ones I enjoy:
1. Henson ( I have all three in aluminum and + and ++ in Titanium)
2. Leaf Thorn and Twig.
3. Original Leaf (the one I shave my head with, I guess that counts as built in LOL. Still gives great face shaves)
4. Schick Injectors. (Haven't used them in a while, but love the adjustable especially)
5. Schick Krona - this one is built in, but not as much as the Henson. Gives room to work with, just wish it was a bit less mild.
6. The original Broman. Unfortunately the newer version was not so great for me.
I've heard there are others, like the Winning razor.
If you have something to recommend - I've had a bad case of RAD since 2006 LOL