MRC- hands down - you can make so many crafts there, some are really awesome, and new item is available EVERY monster hunt.
Wizard Portal - TOO expensive. For your 85 gold tokens you get lev 1 Wizard portal - 4 energy. Fully upgrading costs another 90 gold tokens! And it is STILL weeker than Wizard School. TImer is 5 hours ( doesn't reduce with upgrades, and gives 8 energy at max level.)