Definitely the Plaza
I prefer cages anyway - more interaction with the hamster, good ventilation and you can make the set up interesting attaching things to the side bars and roof bars. The Plaza has a lovely big front opening door - it’s on the tall side, but not massively tall - but filling the base as full as possible with substrate will cushion any falls and reduce the internal height a bit. It’s the cage I would get if buying one now. I already have a Barney cage from Zooplus so can’t justify getting the Plaza.