Hello from downunder.
I had a 99 RSTD until I got the 2007 Venture. For most of its 87,000 kms I ran ME880's.
I always felt happy with them. I cannot reconcile the mileage claims most of you make for tyres. Here it may be our (often indifferent) tarseal roads but I considered 15-18000 kms good going for tyres and those who used a bit more stick would see less.
Just before I traded the RSTD I put Continental's on it and the improvement especially in easy curves was very noticeable.
When the Venture needs rubber I will have to toss up between ME800's, Continental's and (as there seems a fair weight of anecdotal evidence for them) Avon's. I guess the $$ will have something to do with it.