Yeah, agreed it's definitely best to go to a bar and try things before buying. Just going by labels is a minefield. Bunnahbabhain is a classic Islay distillery, but isn't peated (and IMO is a fantastic starting place for non-Scotch drinkers). Ledaig is a Highland malt, but is heavily peated. Many distilleries have multiple lines, some of which are peated, and some of which aren't. Case in point: Tobermory is made at the same distillery as Ledaig, but is unpeated.
And I don't necessarily agree about Irish. It may be distilled up to three times, but it's batch distilled (at least the pure pot still Irish whiskeys are), which leaves significantly more congeners in the distillate than a continuous column still like the ones used to make many bourbons, even if distilled to roughly the same proof. Bourbon just derives more from barrels than just about any other type of whiskey due to 1) it being aged in new barrels and 2) bourbon generally comes from places with higher temperature fluctuations during the year.