If you are comfortable with the Dualshock 4, then I think its a no brainer to go with the Dualsense.
I am with you on the xbox controller feeling weird in the hand, the Switch Pro controller too.. anything with lopsided joysticks, basically, because I spent so much time having a Dualshock 1/2 in my hands... but DualSense pricing is stupid, and the best time to get one would have probably been black friday/christmas, where i was seeing them for 40 bucks, as opposed to their normal 80.
Its what I use on my PC.. granted, I'm not using Moon/Sun.
Only complaint I have with the dualsense is that the battery life is shit, and that..for me, it never turns off with inactivity, so basically runs until dead unless I manually turn it off... but I use it mostly corded anyway so its not a super big deal for me