Problems with GFWL is also about patches.
I fail to see a list of patches for games through GFWL, since like Uplay the patches are only available online.
For steam + GFWL, it is not always the case that Steam has the last version, so the patches will be probably not available anymore.
As for being able to launch games, most games I own are ok without GFWL registration (you miss the online of course).
I tried Blaze Blue and i think it is ok too, and Tron as well, and many others.
Dirt 3 has to be patched but the patch is big because of the game structure.