At the awful risk of sounding like a stuck stylus on a cracked record (SH!T! I bet half the subscribers to this forum are already mystified by the use of antiquated English terms!!
) AVON's Storm 3D XMs are very much worth considering. They're capable of competing with any other tyre in the same sector; available at extremely good prices - they can be bought, loose, for around £150 per pair - and they are made in this country!
Tyre choice is always going to be as personal as choosing anything that will have a subjective analysis and unique application. That's to say there are unlikely to be two people that will have exactly
the same riding characteristics (ability, style, geography ..... etc., et al.) so personal choice will always be just that - a personal choice. No one person can tell you what's the best for you, your needs, your situation, your uses, etc., etc., etc.
In the final analysis it's a lottery - I'm sure you already know this - and your request for a recommendation for "the best tyre for ...."
was actually a request for the good and bad experiences of people that have used and liked/disliked tyres in a similar set of circumstances. The BEST
tyres for you in that particular set of circumstances are the ones that you will eventually like because they suit all or most of your fairly specific requirements.
It's not an easy ask and there's really no easy answer BUT, hopefully, you'll find something that works well and that you really, really like so you will be able to come back and tell us what you chose, why you chose them and how they fared for the conditions! That way your voice can be added to the mix next time somebody comes up and asks for a recommendation of 'the best tyre for my ST".
Good luck with the search - and the outcome!