Ahhhh Lylat Wars. Ranks up there with OOT and Goldeneye for me.
I personally really enjoyed the levels that were fixed in one place, like the one Tasty just mentioned, and the ones where you took on Star Wolf. I just enjoyed flying around obliterating a small armada, only for a much bigger threat to come along JUST as your about to wipe the enemy out completely. Only example that sucked is when your mothership is under attack from the giant missiles. That was supposed to be difficult, and it certainly wasn't.
Also, i didn't think the final boss was all that difficult in either scenario tbh. Giant brain with floating eyes didn't faze me anymore than shoot the crystals in his hands, really.....
Did anyone else used to just let the bombs fly when you're following Fox's Dad's Ghost out of the exploding base? I'd usually have a fuck load left so i'd give myself a little fireworks display as i escaped.
Plus Falco was a douche....... but otherwise, Lylat Wars was and still is a personal favourite.