how should I hook up my 2 rads?

so this is my setup right now

rez - pump - rad - P4 - NB - VC

I just pulled the ac core out of my friends car before we hauled the rest off to the dump.
My question is, now that I have two rads, how should I hook them up? I was thinking either:

rez - pump - split - rad1 - P4
split- rad2 - NB - VC

or:

rez - pump - rad1 - P4 - NB - VC - rad2

or:

rez - pump - rad1 - rad2 - split - P4
split- NB - VC

Whatcha think? Or any better ideas?
Thanks much

WELCOME
I like "rez - pump - rad1 - rad2 - split - P4
split- NB - VC" I have mine in that order . If you use the search feature you will find that not many agree on whats best, seriies or parrallel, it all depends on your case space ............