good luck Ratchet, your decision can be understood. Unity is a good choice for a couple of game genres, especially when you can collect nearly all the scripts you need for a relatively simple game, and has enough knowledge in 3d modelling and level design. and you can buy plugins when you cannot do something by yourself. but working with Unity Free can lead very fast to the conclusion of you need the Pro version to make pro lookin games... imo 3gds is suitable for making good games by hobbyist or indie developers, but yes, you have to do more programming, and to get some knowledge in all areas of game making, which means more time...
if the new WED will be really different of the existing concept, maybe it will be a good reason to return.