Jaegerbombs or vodka & redbull! dicuss!
Jägerbomb I assume means that the shot is mixed into the energy drink by the bartender, and not "dropped" as in the traditional "U-Boot" or "depth charge" drink (which is a stupid and bothersome custom anyway)? Because in some places, it means one or the other.
Once you go Jäger, you taste nothing else for the next couple of days. The stuff is extremely sticky, toothbrushing and rinsing the mouth don't help at all. Been there, done that, and energy drink late in the night means a terrible night followed by even worse headache and tiredness that would follow from normal hangover. Even gin & tonic or gin & grapefruit juice long drink are more merciful (though anything gin-based causes a hangover like no other, except red wine).
To answer your question, if I would have to choose between the two, then vodka & energy drink mixed, but I'd prefer neither.