I'm not seeing a "male, both Sheps" option[footnote]Or a "female, both Sheps" one, but the male, both Sheps option applies most to me[/footnote]. I mained femShep for the first game but I shifted gears in ME2 because I thought the Garrus and Tali romances felt more organic[footnote]On the grounds that they had more time to develop[/footnote] than the first game ones, and I preferred the bash bros/bromance dynamic with the former as opposed to the flat out romance. That said, I've got playthroughs of the first two games as both maleShep and femShep (multiple times over, in fact), but haven't worked up the will to finish femShep's playthrough of ME3 (which I completed all of once).
Though playing as myself? Please. I tend to default to female characters when given the option (Probably 65-70% of the time, tbh), and when given customization options, I tend to simply try to make the character seem 'cool' to my eyes rather than trying to echo my own traits. Putting my own face in game just serves to break my immersion, as odd as that might sound.