You can always put boxes or something under the shorter ones to even them out. Unless of course you have height restraints, then it'd be better to LST or something.
@the OP - It's still early yet. Looks like the one on the left is starting to curl under. Might want to keep an eye on it. Maybe thirsty.
The one on the right might be a male. They tend to look more spindly like that. Here's hope'n it's not! Am I right?