xproc : you have done your homework and make out a good comparison. Actually only you yourself can decide. There is and unlikely will be a perfect phone. Just decide based on which of the phone features are more important to you.

In life there is the 80/20 rule. If product meet 80% your expectations, it is the right product . Unless you have resources and is not a restriction, get both and sell off one after test over a week or two.

If gaming is a crucial requirement - the Galaxy S wins hands down due to its better and faster graphic processor, Coupled with its gorgeous and bigger screen . There are several comparisons on the web - each case the Galaxy S win ove other other Android - Nexus, Desire, Motorola Droid

Congrats and have fun tinkering with it