Elevation in Tempe is 1,140–1,495'. I would think the very dry climate would affect the ball more than the elevation.
Texas & Vanderbilt have the best pitching. Texas's 2.89 ERA (1st) was almost half a run better that Vanderbilt's 3.37 (6th), and was the only ERA in baseball below 3.00.
Texas (3.71), Arizona (3.33), & Vanderbilt (3.30) outscored their opponents by more tha 3 runs/game, (MSU 2.59).
I focus more on pitching, as hitting is heavily influenced by the individual ballparks. IIRC, any ball hit at Disch-Falk within 10 feet of the warning track would be a home run at Tennessee.
We learned a long time ago you need a deep staff to win the CWS. You can get there with less, but without a 3rd starter and bullpen, your going to have to score a bunch of runs to win. Every team has 1 good starter, who can beat your ace on any given day; if its the 1st game, that's a bitch.
Hook 'Em!