You said any Echani guy or girl, correct? If so than my vote falls for Raskta Lsu from Darth Bane: Rule of Two. She was a Jedi master who survived the Seven Battles of Ruusan, and indeed the climax of the New Sith Wars around 1,000 BBY. She was a Jar'Kai practitioner, weilding a pair of blue lightsabers with exceptional skill. During the duel on Tython she was the most formidable of the Jedi facing Darth Bane and his diminutive apprentice. She rather reminds one of Saora Antanna from the Jedi Quest series, only a better fighter.
See the adress if you're a sceptical type who doesn't think she actually exists, or read the book I hardly care so long as none of you accuse me of making her up.
"Raking is easy, but all you get is leaves.
Digging is hard, but you may find gold.”
“Like a gold ring in a pig's snout is a beautiful woman who shows no discretion.”
"Get thee gone from my gate, thou jail-crow of Mandos!"
-Feanor to Morgoth