That depends on the price, you really have to pick one of the more spectacular rooms.
If its the pasha in the more quiet area, foshion is in front of it.
I don't think the rooms of foshion or dwave are spectacular for the price they hold, i think you'd be better off picking another hotel in the area, like stellate or aramis. They seem a little cheaper (not that much) and also a little nicer in my opinion.
Also if you went to the other pasha by chance, that one has really small rooms. Listo is in front of it. I don't like listo so much, it looks old and worn off imo. Even xo is nicer and much better price.
I feel like it hugely depend on the area how big the rooms are and how the prices are. Like in the middle of kabuki cho, the rooms are really small and quite expensive compared to the outside near meiji dori where the rooms are a lot bigger in general. Also the closer you get to ookubo, away from shinjuku station, the cheaper the rooms generally get.
As for roppongi, it's a sex district but there are only two hotels so they can ask pretty much whatever they want. There is a hotel with old rooms that could never charge more than 5000 in any of the major love hotel districts but that charges over 10000 for a rest in roppongi. The more recently openee hotel has nice rooms but they are not that big (even the one with the tub outside, the inside room is very modern and clean but not big) and the prices are high as well. I think i have seen the bathroom outside thing before in a few other hotels as well (lux in gotanda?, maybe the big pasha has one as well?) but those rooms are always some of the most pricey ones.
There is also this super weird room in sk plaza in shibuya that has an actual swimming pool inside the room. The room itself looks old and dirty and i think its a stupid idea but its quite an attraction. That hotel was very foreigner unfriendly. Make sure you go inside with a Japanese partner or they don't let you in. The staff talked to me even though i was with a Japanese and they almost didn't let us in (maybe they werent sure he was actually japanese, idk). They said something about foreigners not being able to read the instructions for when there is an earthquake. Very weird.