when it comes to choice you get your fans and your floating voters, some like peak power numbers some like a bit more torque, some like linear throttles some don't
don't believe Revo have produced any figures for the GTI or the R as only do on release
both are reliant on a dealer network with Awesome back at the reigns for APR, other things to consider are dealer network, switching etc
speaking to someone who has gone to an OBD map from a tuning box today and first thing he said was the map was far better in terms of drivability on a manual R