There are a lot of wind instruments out there, personally, my favorites always been low brass (I’ve learned all the most common low brass instruments) so naturally I’ve glazed low brass the whole time I’ve played, especially euphonium which is my main instrument, but I legit want to see what other peoples arguments are
The average quality euphonium will have a fourth valve compensating system, as well as being able to produce a wide array of sounds without even touching the idea of mutes, incredibly easy to play out of range on, both in terms of screaming and pedal notes, and already has a respectable range of close to 3 octaves, it also has parts for it produced in bass and treble clef, and its pitched in tenor, overall it’s pretty great at everything and I think it’s the most versatile instrument.