I've only owned these 4 scooters.....
Each of my rides start in the dark, before sunrise. Thus - my scoot's dash gets a lot of attention.
I've found the least legible dash to be the small speedo on my LIKE200i. It is not that big a deal to me - because, by now, I pretty much know what 30mph feels like out in the boonies
The 100 MPH speedo - is..... well, you don't need anything past @66mph unless your belt snapped and you're riding her down an Olympic ski jump.
Clear and pleasant blue lighting on the Liberty 150i. (gas pump emblem pops on when I'm into the reserve, red light blinks for a day or two to alert that coded key is necessary) Some claim 70 on this scooter. 63ish is more truthful.
HONDA NSS300 Forza - at "key on"! Clear, and my favorite.
Burgman 400 nice, but many mornings I'd rather not know how cold I am!
Your fav dash?
Stig