I considered them too, and decided against it, for probably the same reasons you did, but I think they're fair game. Still, for classic "Southern Rock" -- go Skynyrd! I wonder how many of the people voting for the Allmans have really listened to Pronounced, say? I'm not saying it's irrational to prefer the Allmans, I just think Skynryd is dismissed by alot of people who are basically only familiar with Free Bird, and maybe one or two of their other big hits, and therefore think they have nothing much else to offer but those radio-ready anthems. They suffer from the same problem that the Stones do, in that they are so aggressively proletariat, unpretentious and common in their appeal, and have written enough simple songs that are easily appreciable by everyone, that they come across as unsophisticated and somewhat shallow. Anything but.
I would personally argue that the best that LS accomplished was a furrow well-turned by the time ZZ Top had done _Fandango_. But you gotta give it to LS that they took the Texas boogie and made it Dixie-fried. And "Sweet Home Alabama" and "Gimme Three Steps" have an immediately-recognizable, international cache that no other Southern band, with the exception of REM, has ever achieved. There's something utterly uncanny about being in a tiny pub in Yorkshire and hearing "The Ballad of Curtis Lowe." And of course, they say that Neil Young's always been a big fan. . . .