i hate riding with gloves.  nothing ever fits right or lasts long.  rainproofing is problematic at best.  pre-curved palm/fingers is usually better.  figure that you are going to wind up with a bunch of gloves no matter what.  if you really like a particular glove, but it isnt warm enough; buy silk or some sort of very light glove to wear underneath the prefered glove for insulation.  i have bought the same glove a size larger for use with a thicker under glove.  some ski gloves and lined dress gloves are very warm and water repellent and flexible, but have near zero abrasion protection or feel. 

i have a really nice, expensive pair of bike specific gloves.  imagine my shock and disgust to find the fingers of the right hand wearing out well before the left.  (no jokes here, ok!). one would think that the clutch figures would show more wear.   if i had new leather gloves, i might treat the wear areas with some lexol type leather conditioner rioght out of the box.

let us know if you find something that works supurbly for you. 

nobody rides half as well as they know how.

Some around palm with the thumb / some without including the thumb.

I thing the best is to try them on.

I prefer them tight / at least at first, they tend to stretch with use.

I have found that Harley gloves to be very well made, but you do pay for the quality/brand name. I also like the Joe Rockets.

I find that the no name brands don't fit or feel as good during use.

Gfurlo

They have given me more comfort and better grip than any others I have tried. I just bought them at Bikefest from Street Custom Motorcycle and rode home with them. My hands were less tired than my previous gloves, so check them out...they may be what you need.