Over the last couple of years, just using my stays with the Accor chain as an example, I have happily stayed in everything from Ibis through to Pullman, Sofitel and MGallery - they must be so confused trying to pigeon hole me and market to me! Ibis Bratislava was a stand out, and so was Ibis Styles Nagoya.
I like to fly J - for me this is the sweet spot. I've been lucky a couple of times with OPUPs to F (including on one spectacular occasion all the way from SYD-LHR on QF1 - long story involving QF1 being cancelled for maintenance and us being calm and OK with the delay to the next day, and turning up to the gate with BP beeping and a new one provided - straight to F

), but I don't feel that the jump between J and F is worth the extra $$ or points. For me, it's definitely worth it for the jump between Y or PE and J though. I hate arriving at the start of my holiday feeling absolutely wrecked.
Hotels are a bit of a mix for me - I'm another one who's more interested in location of the hotel and cleanliness rather than fancy facilities, although I do love these when I have access to them. The other things I am interested in include the size of the room (we usually travel together, and 12 sq m rooms are a just bit too squeezy for us), that the bed is not pushed up against the wall (I
hate having to climb over Mr Seat 0A in the middle of the night when I need the loo or vv), the overall cost and if I can get any loyalty points for the stay, pretty much in that order.
Over the years, we have stayed in Motel 6, Red Roof Inns and similar places when we were younger, had less $$ and took the family with us, and many of these were excellent - clean, well located, spacious for a family and cheap. But now I am getting soft in my older age I prefer a bit more luxury. As per
@jase05, we have planned to have enough cashola for both things to be possible.
Like others here, we also economise on food when we are away, rarely eating meals in hotels or expensive restaurants, and relishing the opportunities provided by street food vendors, little unassuming local restaurants, department store basements and supermarkets.