what's the difference between western Europe and Europe west ? i mainly want the canary islands ? do any of the iberia maps have them ?

There are a few choices depending on how much space you have available:

Low-Level Europe_West_995_8349 (23 Countries = 1.23GB):
Andorra, Azores, Balearic Islands, Belgium, Canary Islands, Corsica, France, Gibraltar, Ireland, Italy, Liechtenstein, Luxembourg, Madeira, Malta, Monaco, Netherlands, Portugal, San Marino, Sardinia, Spain, Switzerland, United Kingdom, Vatican City

High-Level Western_Europe_995.8507 (30 Countries = 2.08GB):
Andorra, Austria, Azores, Balearic Islands, Belgium, Canary Islands, Channel Islands, Corsica, Denmark, Finland, France, Germany, Gibraltar, Ireland, Italy, Liechtenstein, Luxembourg, Madeira, Malta, Monaco, Netherlands, Norway, Portugal, San Marino, Sardinia, Spain, Sweden, Switzerland, United Kingdom and Vatican City.

There is also Europe 995.8507 and Iberia 995.8507 which include the Canary Islands too

All of the above already have the meta codes released.