By Jason Jordan Six of the eight teams in the field are ranked in the SB Live/SI Power 25 basketball rankings. Last year Montverde (Fla.) Academy knocked off Sunrise Christian Academy (Bel Air, Kan.) in the GEICO Nationals championship game, 62-52, now the Buffaloes are back, this time boasting a No. 1 seed and riding an 18-game winning streak. Sunrise Christian, ranked No. 1 overall in the SB Live/SI Power 25 basketball rankings, leads the eight-team field which is set to run Mar. 31-April 2 at Suncoast Credit Union Arena in Fort Myers, Florida. RELATED: State Champions Invitational to launch…