Would hardly put ranger in that top 4, Try getting in any elite areas (Par tombs and fow/uw) with a ranger. They are hardly sought after. I'd replace Necro with Ranger
After Warrior, Monk, Necro Ele I'd go like this
5# Ranger
6# Paragon
7# Mesmer
8# Dervish
9# Rt
10# Assasin
Reasoning: #5 because I've never had trouble getting into PuGs (Par elite areas) #6 Paragons are always welcome in my groups. They are far more usefull then most people think #7 Same as paragon - Mesmers are very usefull if you have someone who knows what they are doing playing them #8-#10 Only ever had a rit in a tombs group if I want spirit spam or resto Ill take a N/rt over a rit any day, I find most dervish and assasin players think they are invincible - Ive had 1 or 2 good sins in pugs but the majority just fail