Need help deciding on a high output alternator. Need some help from people who have undertaken this mod to chime in and help me understand which is better, and why.

For example:

MR ALTERNATOR
140amp
50% at idle, 100% over 2000rmp - no micro pulley option available.
Plug and play
(I believe this is where Rickster was getting alts from)
$269

ALTERSTART
150amp
50% at idle, 100% over 1400rmp - no micro pulley option available.
Plug and play
$299

Then there's the more spendy option, but not sure if it's going to work yet:

OHIO GENERATOR
GM 190amp
50% at idle, 100% over 1500rmp - not sure on micro pulley option yet.
Not plug and play - however they will fabricate for me a direct bolt mounting system and custom pigtail. In addition, they'll fab up a 'tricked out' regulator to play well with the VX.
$500

1.) Are there any other options out there for the VX?
2.) Which alt is most durable (from experience or opinion)?
3.) Any unforseen considerations with adding one of these?

Thanks.

-biju.