I'm in the market for a good bottle, and two of my main considerations are:

The Balvenie 15 Year Single Barrel
The Macallan Cask Strength

They are about the same price. The Macallan is stronger but The Balvenie is older. Has anyone tried them both? If so, which did you prefer?

Of course, I'm not limited to these two. Also considering the likes of Highland Park 18, The Macallan Fine Oak 15, not sure what else to look at...