Laphroaig is too peaty, in my opinion. I can drink it, but don't particularly enjoy it. Lagavulin I have yet to try, and being an Isla, I know it too will be peaty. But I think it has different layers of taste (so I've heard) as opposed to Laphroig which seemed to me to be all smoke all the time.
At this point my personal favorite is the 18 year Highland Park. It's just phenominal. I get toffee, spiciness, and a smokey finish. Just the right amount of peat. Just the perfect scotch for me.