im gettin a falcon soon!!!!!

No sir, xenon's may someday be the rarest when they all break, however, RGH (Reset Glitch Hack) is not JTAGGING, there is the JTAG Hack, and the RG hack, two completely different exploits.

Meaning that consoles exploited on RGH aren't JTAGs, although they can do many of the same functions.

Meaning it is still going to be Opus and Jasper that are listed as the rarest motherboards for the JTAG Hack.

-Honda- wrote Valhalla is the rarest only 3 known to be made.

Valhalla motherboard is the Slim motherboard, there have been thousands made, most of these being exploitable.

It appears the consoles that are lacking the HANA chip are those of the Matte finish that came after the glossy finish was discontinued, and all limited edition consoles that came after the discontinue.

Thanks guys for all your comments and maybe I ahve made a couple of mistakes but anyway thanks for the comments and opinions and that is my opinion in the post. Everyone has there own opinion so let them be. We are all different.
OPUS is the rarest

I don't think the RGH is easier than JTaG. It actually is more complex. Just my .02 but a RGH console can do everything a SMC hacked Jtag console can. Both will run unsigned code so they're equals.

Xenon's may be rare someday seeing as they're no longer being produced and they tend to go out quickly. I myself have one and I'm afraid to use it due to their well known issues with the RROD.