I don't have a YM1500, but for a YM240/YM2000 the Baldwin B179 fits and is recommended by them. I have found some recommending the
Napa 1334, and since it was Mark777, I believe him. That crosses to Baldwin filter numbers 227, 301, and 421, the same filters, apparently, except for bypass pressure.
The various Yanmars that I have call for some different filters. Napa filters for the 240 are 1064, which crosses to Baldwin 179 and 227. For my 186D, the Napa filter is 1568, which is Baldwin 161-S. The 1401D has a Fram PH3593A, which crosses to Baldwin's 421, 179, and 1402. In other words, the Baldwin 179 has the same diameter, thread pitch, and sealing face as does the 168, but varies in length (The 179 is shorter). The The filter that should go on my 1401D from Baldwin is their B227, (crossing from the YM169, which shares the same engine), or the Wix 1568, that has a little bit different dimensions.
As far as I can surmise, the differences are the overall length of the filter and the bypass pressure. I have Wix filters on some of my machines, too, but the crossover information is readily available online or in the catalogs with these numbers.
I mostly use
Wix and
Baldwins since I like their searching and cross reference sites, and I got a couple of their filters with tractors I bought. I like Fram filters because some of them have a grippy coating, so I can easily change them by hand, and not try to fiddle with getting a filter wrench behind and around the loader and its plumbing. Also, Wal-Mart has them locally and is open 24 hours, while Napa or the equipment dealer doesn't always have what I want, and aren't necessarily open the days or times I am free.
A good alternative would be to use one of the site sponsors like LMTC, Hoye, etc who ship and can provide the correct filter to one's door.
I change the oil and filters annually or more often, which is less than 40 hours in my applications, so I could likely get by without any oil filter whatsoever. For me, then, I don't see any difference in using one filter versus another except for availability, convenience, or something like that, with one odd exception: I'm actually starting to use the smaller filters of those available. It seems like, with their lower volume, they fill with oil more quickly after sitting for extended periods of times, which reduces the time the engine spins without oil. Since my oil change intervals are minimal anyway, this seems like a better situation than having unnecessary filtering capacity but longer times without full lubrication.