My opinion on Red Mage so far
Although he is a lot of fun to play my 52 Summoner ilvl 115 takes down foes a little faster and is not even half as squishy because of my pet as my 53 Red Mage ilvl 120. Even my 52 Scholar ilv 100 although taking much longer to kill things has greater survivability. Infact my Scholar hasn't died in like forever. The Red Mage loses a lot of health anytime anything gets close to it. And I am pretty sure I am playing the Red Mage correctly altering Jolt with whatever spell I want to cast to take advantage of dual cast..building up white and black mana to about 80 then using all the melee abilities. If your fighting 2 foes close forget it with a Red Mage once you get into Heavensward unless you are constantly moving around because the enemies special attacks will take 1/4 of your health with 1 hit ( about 1500 dmg ). I do enjoy the combat with the Red Mage though. I have 25 -35 hours time with the red mage already I think.