We have a mixture of both, new with ensuite, and newly built without...regional Vic cities, haven't had any problem going back after 12 to 18 months, skimming the equity growth to fund next purchase.
I think perhaps the difference is in the rent ...(we are not sellers-buy and holders=longterm).
I've got a relatively smaller block which I'm about to build a townhouse on now, it wont have the ensuite, (will have 2 way b/room). It will only have single (automatic) garage too. It's a 3 b/r, btw. From what I observe/research of rental prices, (in the area), and also talking to PM's it will fetch $270 plus rent, if it had the ensuite and dble gge, I would be fetching $370 plus-ish.
It's a narrow frontage block though, and the smaller townhouse slides in well, I'm happy with what I'm doing, the block I have around the corner is bigger, it will be 3 b/r ensuite, dbl gge. So I'm doing what I think best with what I've got. No sweat.
What I do find highly regarded is good heating and cooling. Both will have evaporative cooling. Very hot summers, cold winters here so I have no hesitation to wrangle/allocate money spent on ensuite-goes toward evap cooling.