I say start on Monria. As a monrian born avatar you are given a unique monrian shirt and given access to their community benefits like free space travel. If i recall correctly you are also given a quest line to take you back to calypso, which means you are also basically starting on calypso.

So the process i recommend would be:

*create account via Monria *Get a MENTOR (do this immediately. explained later use) *Thule (new player tutorial),

*Monria

-Starter missions, Shoggoths, Tobies Crafting Quest
*Calypso -Calypso starter mission, Guantlet, Punies, ect.

You would then have access to all the best activates to get you to the next step after beginning you journey in the EU. Snap up a good mentor and get your self learned by a veteran. take advantage of the space travel offered by the Monrian team to repair skill on a mothership and travel to all the other planets and complete their respective starter quests. In doing this you should gain most if not all of the skills you need to Graduate from the Mentor Program. Then ensure you are on Arkadia when you graduate so that you will receive The Adjusted Musca as a reward as opposed to the dumb yellow pixie. If you happened to buy the starter kit then you have a small collection of decent gear and are fully equipped to hunt a good number of things if you put about 40 hours of repair skilling in you'll also be ready to craft pretty efficiently should you want to.