I avoid the squatters. I'm very overweight and squatting kills my legs and my balance ain't the best out there either...
But so far, all squatters I've seen were accompanied by Western style toilets as well. I really never came across a public toilet without Western toilets.
I've been to 13 countries so far, and most either have no, or very well hidden, public toilets, or they're dirty as all hell, and by that I mean: lumps of poo on the walls. Germany has traumatized me in this matter. Public toilets in Germany seem to be limited to those movable Dixi boxes where the feces and piss is collected in a container underneath and once it's full, have fun.
The Japanese public toilets usually offer squatters, Western loos, big chambers for wheelchair-riders and oh my god, handwashing facilities! The best public toilet country out of all 13 I've been to so far. And I love the big chambers... when they're clean, they're a nice place when you need some alone-time or... when you don't know how to get back to Shizuoka from Omaezaki at 3 am, and need a private floor to sleep on...
I do think though, that the men's rooms should be a bit re-designed in many cases. Often, the urinaries are right at the door and any passer-by can watch those poor guys pee. Gotta be mortifying.
The only unfortunate thing is that it's not punishable by law to piss and miss and not clean it up. While staying at a ryokan with shared toilets, I ever so often had to clean someone else's piss off the seat. Lady's toilet, mind you. I can't understand how those people can't be dying of shame of leaving the toilet as dirty as that instead of spending 20 seconds on cleaning it. Unfortunately, that has been in a place with almost only foreigners and in more crowded places like train stations, or places with mostly Japanese people, the toilets were usually clean. Let's cooperate in giving the Japanese a good impression of ourselves, shall we? Please?