I'll be there at the Palladium. Just saw Dio there.
If you care about sound quality, I recommend standing near the mixing board. It sounded perfect and you can still see the stage well. Of course it's also more reserved and polite back there too. It just depends on if like to stand or bang.
Of course to thrash you need to go on the floor, but the ceilings are particularly high and create an echo. Especially to the side of the stage sounds like shite -- boomy and echoey. It's all because the ceilings are so high up front, but farther back the balcony traps the sound in a perfect mix.
BTW, I saw Kreator at the Trocedero in Philly and the sound SUCKED big time, no matter where you stood.