Credits aren't exactly worthless...
Go to Clea and buy yourself an Iron Buddy. I'm uncertain if they are or are not still capable of being donated to crafters, but at last check they were basically the way to powerlevel your crafters up. And they're one hell of a credit sink.
yeah, they are. I think that's what people use them for. You have to be prestige 1 to purchase the first tier Buddy, however. I was about to buy one, saw that...and was a bit turned off.
I had just gotten Jean Grey to 60 and while I like her, the only current useable build for her is really, really boring after a while. sit on stiff and spam AoEs. Anyway, I didn't want to go through leveling her up again, not in this state. I think her review is up soon and she shoudl get the rework within the month?
I was fooling around with Panther and he does get fun when you mess around with certain mele builds. Even at level 24 or so, he's pretty powerful. I'm now alternating between Deadpool and Nightcrawler, and they are tons of fun. All mele Deadpool for now...though at some point I want to try a range build because Shoot all the Bullets is just fun (though I'm sure it gets old/probably not very useful).
The facetanking mele build for him is pretty solid, though I was getting bored, due to his slowness, until I hit 30 and got body slide...which changes everything. Li'l Deadpool is also a fantastic skill, even at just 1 point.
I can see myself prestiging either of those before Jean Grey right now.
I'm currently saving splinters for IronMan, and will probably just random throughout after that...though I hear Venom/Magneto are out soon, and Silver Surfer will be out sometime down the line. I might have to save up again for Venom or Magneto.