The pizza map may not be a perfect map, but in all but the off-peak hours, the small maps are way too small.
Some people enjoy simply furballing all night long, the more pilots in the area the better. Let them furball all they want, great, on akdesert, they dont bother me, the n1k2spitla7pony dweebs can furballl till thier heart's content. I can avoid it if i please. Sticking to areas with smaller fights.
On the 256 maps it simply isn't possible. During prime time the 256 maps are nothing but lines of furballs along the front lines. You can furball, hop in a GV, or log off.
In addition to this choice, akdesert offers a huge span of altitudes to fight at. Most fights happen at a few thousand feet above ground level. On the 256 maps, this means virtually all fighting is under 10,000feet. Akdesert however, has numerous fields where the same fights happen at 10k-15k feet. This encourages the use of different planes, instead of simply the best low-level fighters.
We need more 512 maps. Ones that aren't such eyesores. With as wide of a range of field altitudes as is practical. Unrealistic, even impossible, terrains may not be any good for scenarios, but for the MA, can be perfect.