Either the IAH or EWR connection will have you flying on a 767. Flying via LAX will have you on a 737. If you get into Biz on the 767 it is quite a nice product. The seat is the international BusinessFirst seat and the meal service is pretty close to the BF service.

It is possible to upgrade for cash at the gate, assuming inventory is available. Details about that program can be found here: http://www.flyertalk.com/forum/conti...ml#post8372899.