Have they got a better GPS navigator now?

It seems that GPS training is now core along with ILS and VOR.

Actually, you can now plug your real handheld into a USB port and Elite
will send the data to the GPS. You can probably do this with MS FS
too. I bought Elite a year ago and the scenarios are really good
practice, but they (at minimum) double the cost of the sim. Elite
seems to be painfully slow at new features like an integrated, modern
GPS.

I think for the money, MS gives you the most options. If you are
computer savvy, there are tons of add-ons, and modifications available
to you. There are companies that make add-on GPS (RealityXP) like the
Garmin 5 series that's very accurate and fully implemented.

I can't comment on On Top. I had a copy way back and back then it
wasn't good and didn't have the huge following of add-ons that FS did.
... Akiley