Can't add to the list but can comment on three of the suggestions having lived with them:

The EFI Bullet is the best Enfield to date, but is still a 25HP plodder that needs searching thoroughly for Indian production stuff-ups. Mine snapped a chain as they didn't rivet a link properly. Once sorted it's lovely to ride and easy to live with except the now ever changing spec confuses parts suppliers used to bits from the 50's fitting bikes from the 90's. I'd have another as a second bike.

The CB500 seems close to my ideal bike. Light, powerful enough, long ranged, long service intervals, haven't found anything it won't do. The biggest complaint after 18 months and 12000 miles is that you can see where my boots have been on the brake pedal. Might be through the paint by 2035, but don't tell Honda or someone in the paint shop will be getting a new letter opener in the internal mail.

The Rotax powered 650 BMW is an Aprillia POS the Bavarians used as a cost cutting exercise. Water pumps and reg/recs fail, chains are the size are rated for a 250 twin, paint comes off the engines, forks have been known to snap. What was not a bad cheap commuter design in 1995 was past it's sell by date at the FI update and is now just nasty. Only reason I can see to get one would be as a bargain, but as rat bikes go XT600e's are better (but carbed).

Andy