SAN ANTONIO — Shaquille O’Neal won four championships and an MVP Award over his 19 seasons in the NBA, and has since studied it closely as an analyst.  So whom would he select if he were a general manager and could choose any player — past or present — with the No. 1 pick?  “Me,” O’Neal told The Post.  Excluding himself?  “I’d probably go with [LeBron James] because Bron — and I know this is a Kobe [Bryant] comparison — Bron had it when he came in,” O’Neal told The Post. “It took Kobe two or