There’s little to choose among the best. You’ve just got to hope for the best and try your hardest.’’ That’s the pragmatic attitude Mahesh Bhupathi has adopted for the Tennis Masters Cup, which begins in Houston this weekend.Mahesh, who teams up with Belarussian Max Mirnyi for the ATP season-ender for the second straight year, will be hoping to improve on the one win they registered in 2003. Back then Mahesh summed it up aptly: ‘‘It’s the intensity of the competition that pressures most.’’Bhupathi/Mirnyi, No. 5 seeds, go into the tournament with just one title, the AMS Madrid, under their belt and find themselves in the tougher Blue Group. It includes the defending champions, the Bryans; Bjorkman/Woodbridge, who have never finished below the No 4 rank in the ATP Doubles Race since the past four years and the Argentines Etlis/Rodrigues, the team that first beat them last year.Since teaming up for the first time in April 2002, Bhupathi and Mirnyi have been playing off and on this year. In 13 tournaments together, they boast of a 25-13 win-loss record. Interestingly, Bhupathi having played with six partners has won five titles, compared with Mirnyi’s success that’s measured at just one.However, as Bhupathi puts it, these stats don’t matter. ‘‘It’s anyone’s game on a given day; doubles is all about gelling.’’ THE FIELD