Longmorn can be amazing,find some Linkwood if you can,Glenmorangie Quinta Ruban is simply amazing,layers of flavor,and my best cost/dram winner........
Ardbeg Uigeadail is legendary..........
I have found that age is not always the way to judge a dram,a 10 or 12 year old can beat an older bottle in the value for cost battle. Excessive age or finishing can ruin good Scotch.
Do try higher proof bottlings though,just like bourbon,you get more flavor at higher proof.
Check this site.........
www.whiskywhiskywhisky.com