It depends what sort of stuff you're looking for. I'd probably try the Oban 14, the Lagavulin 16 (that'll let you know if you like peat or not), Macallan 12 is a good go to scotch for a starter. The Highland Park is good too. I'd go as old as your wallet can bear, although I doubt if the 30 is really twice as good as the 25. Ardbeg is nice too if you like the peaty stuff. The supernova is very good IMO and not too expensive (relatively speaking). Enjoy!