Was about to post this exact thread myself and thought I'd saved myself some time when I saw your post in my search results. But alas, no one replied!
So I'll share my research culled from advance searching for ideas here in case you're still after suggestions!
A miniatures set seemed to be the main suggestion for people who weren't sure what the recipient would like / couldn't decide.
The Vivabox from the perfume shop is £40, has 7 small samples and a voucher for a full size bottle of whichever of the 7 the recipient likes best (only available in store at the perfume shop, not online). I can't find any info on what aftershaves are included in this years box though.
I found that Boots do the same thing, also for £40 and their box has Versace Eros, Boss The Scent, Paco Rabanne Black XS, Lacoste L12:12 Blanc and L'eau de Issey Miyake in it this year.
I also found The Perfume Society do a selection of miniatures for £19, but no voucher for a full size one and the range seems to be (to my incredibly uneducated eyes anyway) a bit less "big name" type brands.
Boots also have a Fragrance Finder, that you can put in what your husband/whoever already wears and it suggests similar fragrances (or you can choose by personality... there are three options though so that's a bit more limited).
My DP wears Tommy and has done since his teens, so is looking for a change, but not too dramatic a change, I think! Issey Miyake L'eau d'Issey pour homme has come up as an alternative a few times when I've been researching so I'm going to go and give that a sniff in Boots tomorrow I think!