personally i think coastals are the nicest carpets (but i'm a little biased considering that 80% of the snakes i currently own are coastals).
i'd recommend a quality 'normal' sib from the jag line myself. i'll post some pics this week of my humble collection if that'll help - you should be able to see the diversity of color and patterns available... most of the normal sibs are great quality but the price is not too outrageous.