Go for the cheapest.
If you can do it in a Dragonfly.........go for it.
Nobody cares in the long run.
One thing: do your fixed wing PPL first and take the savings. Get the licence, it will come in useful for NVFR ratings and IFR Ratings later on.
Three facts:
Nobody uses the H300 commercially. It is good to learn the correlation between throttle and RRPM and all the associated issues.
R22 is great to learn on and used commercially all over the planet. Easy transition on to the R44.
The B47 is almost obsolete. You have a 1% chance of ever flying one commercially. Great to learn on and fun. I love it. Good transition aircraft to the Bell 206.
Most of all. Do it affordably. You will need the money to pay the rent over the next couple of years.