Season 1 is excellent. I rewatch it every year or two.
Season 2 is a struggle at times. I do rewatch it, just not as often.
Season 3 I've only watched once when it aired, but remember liking it. I'm due for a rewatch of it soon. It however didn't capture the same kind of magic as Season 1.
Fire Walk With Me is a necessary viewing, but I've always been on the fence about how I felt about it. Or rather, if I felt it was a necessary installment.