So, you're trying to decide between having a male meowstic with the ability prankster, or a togekiss with the move follow me.
So, prankster meowstic is a pretty wise choice seeing that it's his hidden ability and that meowstic has a lot of status moves. Therefore, you can use him early in battle to weaken your Pokemon and infect that with powerful moves such as toxic, attract etc. Also, he would be a great choice since he's fast, and it seems that no matter who you're facing, prankster would mostly give him a huge lead.
Togekiss who has the move follow me allows for him to become the target. To me, this would be wiser to choose if your battling Pokemon that your stronger against (such as Pokemon with ressitances or immunities to you). Otherwise it's bad. But, on the other hand, this leaves your second partner (since follow only works in double battles - maybe triple) a free shot at your opponents. This is also great since togekiss is a fast Pokemon too who excels in sp. attack and sp. defense.
Based on this, both are excellent choices and if you're doing a double battle, you should both these Pokemon with these restrictions on your team. If your going solo or one Pokemon at a time, I would highly recommend choosing togekiss over meowstic. They're both great, but togekiss excels 10% more than meowstic.
You may agree or disagree
Hopefully I've helped!