TE was my main in Old Live, With my TT tagging along if I was on my own and felt i needed some extra utility and of course some extra cargo Space. Will prob Level those two up first since I like the missile/kiting type of game play and those were my two favorite classes. With this I will feel that i've covered the missile path for a while.
Also loved my JE, not just for the WH ability (everyone needs a taxi), but because I find it relaxing flying from asteroid to asteroid gathering ores like a bee collecting nextar :D No stress or a plan to it whatsoever, just fly around. Then a JD for the up front and personal Battle experience.
Didn't play much progen in Old Live, so will try the PW just for the different style of play Battle. Allthough a PW can also kite, it just seems wrong :). Will try a PS too for a different experience when collecting those ores. A JE is just too fast to Catch, while a PS just shrugs it off and gets back to "smelling the flowers"...
I have tried the TS though, and will prob also try the JT and PE(?) sometime Down the road. But, all in due time :)
Just saw that I didn't comment on the speed of mobs in EMU, but I too have noticed they are fast. If i don't have my TT With me I try not to take on mobs that will give me trouble if they get too Close. Moving forward is an option as you say, tossing missiles over my shoulder as I go.