Help....stuck installing cfw....

I have a psp 1001 and i just upgraded the ofw to 6.60, my problem is im not sure which cfw to put on? Can someone tell me the best one and which one has the most functions? Also, im a little unsure about what perm. cfw is, i just got a feeling its good.

If I was you go PRO it is at in the download at top of page and Perm means it will always boot to CFW and LCFW requires you to boot to OFW then run a bootloader in game folder to get to CFW good luck:)