Glenlivet 18 yr old is the best Glenlivet by miles - all others are a waste of time.
It should set you back about £30 in the supermarket. I've seen it in some branches of Asda and Tesco's.
I wouldn't have said that it was a typical Speysider though. I'd give that honour to Cardhu 12 yr old SINGLE malt
- not the pure one.
The classic Speysider, at least to me, is Cragganmore 12 yr old. Has there ever been a more moorish whisky. I once had two thirds of a bottle in a night, it was so addictive.
If you can get it, and you'll have to go to a specialist for this one, I also recommend Glen Elgin 12 yr old for the same reason. It's nearly as smooth as Glengoyne 17 (and that's dead smooth - see my notes elsewhere on this forum) and is like drinking velvet from a glass.