Mate,
I have to agree with the majority of people who posted, do it in a twin, more valuable than a single, at the end of the day COMMAND TWIN TIME IS KING!!!!! THE MORE THE BETTER!!! Majors/Regionals/pels/GAMS/pearl all require that 500 multi engine command time, puts you ahead of the competition a bit when looking for the elusive first job, IMHO the flight school won't give a sh#t, so long as you treat their babie's nicely!!!!!