[quote name='Thunderpaws' timestamp='1423086654' post='2680677']
Nate Mendel P Bass
American Special P Bass
Standard P Bass
50's P Bass
Deluxe Active P Special
[/quote]
Of your list I have tried 4, and own 1 (coincidentally, rather than causally)
Putting you out of your misery, I have a Deluxe Active P, mainly because it was the 'best' (in Fender's terms) P I could afford to buy on the market at the time. I've grown to love it, but I think if I had my time again I would look for a great, straight passive Precsion instead.
What makes a great passive Precsion? Down to you, but in my personal experience anything from the Squier VM series upwards has a chance of being at least good. Since buying the Deluxe I've had a Squier VM, a MIM standard, and a Mark Hoppus sig which have all been brilliant in their own way.
It sounds naff, but get to GuitarGuitar, play everything they've got, and take what speaks to you home.