Home2 Suites are pet friendly and only have studios
It is a Hilton standard that all Home2 Suites must be pet friendly. That is not the case with Homewood Suites though.
The "suites" in H2S are really just studios. Newly constructed HS have a mix of studios and one bedroom suites.
I prefer not to cope with animals, but like the extra space and evening reception at HS, so it is HS for me.