All these different form factor handhelds make my Goob meter go way up as I want to have a ton of them. Then I breathe, turn on the RP4 Pro and realize it's everything I've wanted or needed.
I'm looking forward to testing out the official dock, which should be in hand soon. But I gotta' say, I've bought a TON of these emulator handhelds over the years. I had just about every Anbernic iteration up to the RG552 (which I honestly loved, even if the battery was a little lacking). But between the RP3+ and now the RP4 Pro. There's just no need for anything else. I'm sure if you have the Odin 2 you probably feel the same. I just didn't wanna spend that much and for like $200 the RP4 Pro plays everything I'll ever want to play and a shit ton of Switch stuff is just icing.
Not to mention it just works out of the box when you pair it with an 8BitDo SN30 Pro or their classic arcade stick. Couple that with the excellent HDMI out and the fact it runs Cave SH3 games perfectly. Helluva console experience.
All that is to say...
get a RP4 Pro.