Top best & worst rifle scopes

[LongRange]

ive only owned 3 brands of scopes.

first and worst barska....it was on a AR-15 and first round fired the front glass fell out
second was a leupold...it was nice but had sort of a gold tint to the glass and was a little fuzzy around the edges at higher powers
third and best IMHO nightforce...i own two and will never buy anything but nightforce

[D.ID]

Best and worst in what price range? For what purpose?
Optics are not truly linear. Best at 300 is very different than best at 3K.
You could probably say that the worst is always going to be the cheap crap barska/simmons/ bsa/most anything you find at wall mart. However there are great cheap scopes and there are very expensive scopes you could not pay me to use or are just not suitable for how I use it.
Best for bechrest? Best for kicking down doors? Best for shooting 1.5 miles? Best for cramming behind the seat of your old farm truck? Best for sniping at night?
Then of course..........bushnell for $27 at wall mart will be among the worst but bushnell elite tactical will be among the best. Night force will be among the best unless you plan on cramming it behind the seat and then cost alone makes it one of the worst.
Your question needs a purpose to produce a reasonable answer.