Not a fan. Check out “The Spartans” — not least because Bettany Hughes is the host and narrator, and wears tight jeans, *and* walks away from the camera a lot. ;’) The Spartans were a creepy bunch of assholes. And there’s no doubt about Sparta’s taking money from the Persians, a quick search will turn it up.
I’m not particularly a fan of Periclean Athens, either; the wonderful Age of Pericles gave us at least four monumentally great playwrites — but much of their work overlapped the Pelopponnesian War, and was written and acted during the time when the walls were closing in on the city; the plays wouldn’t have been great had it not been for the stress. Equating something more with something less, it’s akin to the Big Band era which corresponds with WWII.
Athens could have spent its time productively, but nooooo. Athens could even have acted militarily during the long truce that followed its defeat (on land, btw, contrary to the usual idea still taught that the war was stalemated because Athens couldn’t face Sparta on the land, and Sparta couldn’t face Athens on the sea) of Sparta at Pylos, to (for example) free the Messenians and thus deprive the Spartans of a big source of ill-gotten gain.
Sparta couldn’t deal with walls, had no siegecraft, and during the long truce Athens would have done well to wall off Sparta from the northern parts of Greece, and confine it to a small area. But, the Athenians were not too bright. They launched a massively difficult invasion of Sicily instead, lost a large force of men and most of the ships, and par for the course, the joker who hatched the scheme was basically ostracized (not through the official process) and fled to Sparta before the ships even launched.
The Athenian attack on Syracuse was one of the great strategic blunders in history, IMHO.