Obviously this is subjective, but I disagree so completely I can't even imagine how anyone could think this.
Connemara Irish whiskey is also peated. It's also a respectable whiskey, but I think you can do better for cheaper with Scotch island whiskies.
For all-out smokey power, the (Texas-made) Balcones Brimstone is a bit of a mind-fuck. It's dried with mesquite wood fire (i.e. the thing used for good bbq). It's not their best whiskey, and it's not well balanced by any means, but it is unique and very, very smokey.
Edit (after walking through the kitchen): Nikka (Japan) and Kavalan (Taiwan) also produce excellent peated whiskies, genuinely competitive with great Scottish whiskies (unlike Connemara, in my opinion), but they wouldn't be any cheaper than Scottish whiskies in the US.
You'll do much better in the US with a Rittenhouse Rye, or Buffalo Trace bourbon. Hell, even a basic Jameson is better than Johnie Walker Black.
The Johnie Walker Green is a respectable whisky, but like so many high-brand respectable whiskies, it can't punch its weight with other things in its price range. (I've never tried the Blue, admittedly.) That's the same issue with e.g. the Jack Daniels range. It's not that it's bad for mixed drinks, but you can get some genuinely good stuff for cheaper -- stuff that'd so good you'll feel bad about pouring it into a cocktail.