"AT&T Park" doesn't really roll off the tongue and is probably worse than "SBC Park", but "Pac Bell Park" didn't elicit a velvety, dulcet pronunciation either and was given far too much credit for not being a set of initials.
There was the ill-fated attempt by SF Supervisors Chris Daly and Matt Gonzalez to force the edifice to be named after Willie Mays. There's still a petition effort, but contracts are contracts, so don't expect the place to be renamed out of kindness. Fans could force "Mays Field" to stick by consciously incorporating it into their vernacular, nevermind what the tickets and signage says. No offense to the Sey Hey Kid, I'm going to call it what it should be, reflective of another era when baseball wasn't the sole notable monopoly in the States:
- Ma Bell
On the other side, supposedly Lew Wolff already has a naming rights partner in mind, and it's not a company that makes consumer products. A bank or financial services company? B2B? Whatever it is, it's probably not going to roll off the tongue easily either.