Seats or lawn, outside shows blow.
The sound is always crap!
Not sure about in your area Will, but the main Chicago-land area venue, which used to be called Tweeter Center (not sure what corporate name it sports now), SUCKS!
Also, the opening bands always play to a setting sun, which makes visibility difficult.
I just don't care for outside shows. I will go to them on rare occassions, but I won't go see H&H again if it is outdoors.