Dunno osolah..
So much choices, and they all do the same thing.
The types you mentioned are all piggyback management.
a) E-manage, okay, windows based interface.
b) Unichip, new version Q also okay, windows based interface oso now.
c) AFC Neo, still limited tuning like the old VAFC, but cheap.
I prefer standalone, but they're not as easy to tune unless you have a basemap.
Some of the standalones that I know of are
a) PowerFC
b) Haltech
c) Hondata (actually not standalone, addon to standard ECU that enables real time tuning, but it works like a standalone, so listed here)
What I'm using now.. stock ECU.. :P stock B16A mah.. somemore used for hauling parts..