In reply to Flatus Vetus:
Buy this guide www.wheretoskiandsnowboard.com if you are thinking of taking up skiing it is invaluable.
Stick with the alps or Andorra they are nearer and better than North America. (Including Canada, whistler is very expensive for example).
I agree with the other suggestion on here ...get some lessons on an indoor snow slope in uk first so you can get full benefit from your alpine holiday
Depending on time of year you should try for a resort with nursery slopes at both low and higher altitude . Low is convenient but high is good if snow is short supply (and can give a better high mountain feel)
There are many great resorts in the alps but I do like Alpe d' huez for beginners .
All instructors are brilliant skiers but many are not so good at teaching. Personally I think if you can afford them individual lessons are better value after you have got the basics and have got the hang of snowplough.
Switzerland is noticeably more expensive than the other Alpine nations. Personally I would suggest you focus on France, Austria and Andorra .
If you do decide to go to Alpe d ' huez I can suggest a very good instructor who can take you from beginner all the way to some wild off-piste or race training when you are ready for it.