Miles is fine for them, Uribe is working for us, no biggie. Miles doesn't walk enough to be at the top of the order but he can hit.
There have been tons of studies, Coors field air makes the ball travel 5-7% further. The CF fence is 415, asuming the 6% that means it should be 424. For example
CF is 415 should be 424
RC is 375 should be 397.5
LC is 390 should be 397.5
LF is 347 should be 367.8
RF is 350 should be 367.8
They change the fence heights to counter this, which is why home runs arent crazy there, but doubles and triples should be more likely with the extra space. Besides I don't know the altitude in other cities but many are no doubt avove sea level and would experiance different levels of thin air.