He is older in the Arkham games except for Origins were he was in his early years as Batman. That for me would be my most wanted version of him.
I'm not much for younger versions. I usually like characters at their peak. The suit was pretty cool though. As for the face... eh.
For me, the best WASP Bruce is the Telltale version.
It's obviously modeled on Jon Hamm, but I don't much care since I love Jon Hamm.
The thing is that in the comics I read Bruce was a Catholic, so I always took the Waynes and Kanes as some sort of general "Brit" Americans instead of pure Anglo-Saxon Protestants. So I like a Bruce that's more Iberian/Med like some Brits are. When I was a kid Alain Delon was my "Fancast".
But anyway, if you go the more conventional, classic route, you can't beat the Hamm/Telltale look IMHO.