Best bang for the buck: Auchentoshen, the cheapest one.
Best bottle under $40: Balvenie Doublewood.
Good bottle that won’t break the bank: Abunadh.
Most expensive bottle I’ve drunk, and which proved that expensive bottles are a waste of money: McCallan 25 year, $500; tastes a bit smoother than the 12 year, not 12 times better.