I would get all 3...
I use my pnp ALL day everyday. Mine had a bassinet part (just took that out cuz Ken's too bigg for it) I only used that for the 1st week when she would sleep in it. Even for naps shes ALWAYS been in her crib. But my pnp has a changing part and during the day thats what I change her on so I use it 10+ times easily!!
Ken LOVESSSSS her play mat. She has one EXACTLY like that, and it is EASILY her favorite thing. Shes constantly under there bc she does NOT want to be held. Im not even kidding you the girl is OOBER independent and LOVES to be with her "guys" (the little toys that hang) as we call them. She actually talks to them more than us. We think cuz they dont respond and she actually gets LOUD with them!
And that activity stands looks like sooooo much fun! Ken has an exersaucer thats what shes in now sometimes but shes not really really into it yet, but Im thinking its around the same thing..