If one adds used instruments, Baldwin was once a very good piano. There is also Fazioli, which is a really superb instrument (European) and Estonia, which is lower price but also an excellent maker.
Pianos, however, are highly individual. A piano which suits one pianist well may drive another to distraction. One can make rather vague generalisations about the various makers...
There is absolutely no way to compare a piano brand with a car brand.
In my humble opinion, the top of the line, in no real order, would be Bosendorfer, Fazioli, Steinway, possibly Estonia.
Price? For a properly prepared concert grand from any of those makers you could probably find one used but in very good condition for US $50,000 and up (but I have seen nice Estonias for $20,000 and up) which would do very nicely. New? It's not hard to pay well over US $100,000...
Disclaimer: I own three Steinways (two grands and an upright), all antiques, and I love them.