Season 1&2 lighting is better than 4/5/6/7
Season 3 is sort of in-between
I'll take the later seasons with the better writing over the first two seasons any day!
Season 3 is the best of both worlds (Pun intended)...
It has overall the best quality writing of the series, some of the lighting qualities of season 1/2, and it has some of Ron Jones's best work on the series!