
Canon
SELPHY CP1500
Simple, archival dye-sub prints; portability and costs divide users.

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I don't have the specific printers you mentioned, but I do have a Kodak Mini 3 Retro and Liene Pixcut. Between the two the Liene produces much better photos and the software is significantly less buggy. If I had to choose between Kodak and Liene, I'd choose Liene every time.
I have a Polaroid Hi-Print and a Liene photo/sticker printer/cutter. I like them both. The Polaroid is portable and has a cute design and small form factor.
I haven’t had the printer very long, so I haven’t had any mechanical issues, but I only use the stickers on paper, and they are plenty sticky - stickier than the Hi-Print. I also don’t mind journal stickers being not too sticky because I like to re-position them if I mess up.
For me the Canon Ivy is pretty inconsistent with color and not as vivid as I’d like. I just got the Liene PixCut and have been really pleased so far. Not super portable, but still pretty small.
I don't have any experience with the ones on your list, but I've been happy enough with the print quality of Liene's sticker printer that I'd consider another printer from them if I needed one. I've only used the sticker paper with it (mostly to print photos to stick into my planner or journals), but you can get 4x6 photo paper as well. The prints are pretty sharp for a small printer, but the app has a bit of a learning curve and can be fiddly. The main reason I like it for planner use is that it includes a cutter, so I can put several smaller designs on the same sheet and then just peel and stick them individually. The online reviews about this model complain a lot about how the stickers aren't sticky enough, but I think that's mainly been an issue for folks who want use them on textured surfaces. I've put a ton of them them in notebooks with no issues so far.
I have the Liene 4x6 printer and have loved it. Picked up the Liene mini photo printer and have used so much more than the regular version!! It is a little thick compared to a piece of TRP, but I haven’t had any issues with it adding bulk since it’s one of the few things I put in my cousin.
I use two, the Canon Pixma Pro 100 (which I pair with Canon Pro Luster paper and the official Canon ink when I want archival quality), and the Liene 4x6 Dye Sublimation printer. The Canon is much better for 'serious' work, the kind of thing you would want to hang in a gallery. The Liene is better for just quick and fun prints, vacation snapshots, family photos, stuff like that. Both are great, just different tools for different jobs. edit: I should mention that Canon had a black friday sale every year in which you could get the Pro 100 for about $150 (which is the cost of paper + ink), and it comes with starter amounts of paper and ink. I don't know if they are still doing that, but if so then it's a fantastic deal. At $500 or whatever the normal price is, it's only worth it if you'll be using it a lot or making money from selling prints.

Canon
SELPHY CP1500
Simple, archival dye-sub prints; portability and costs divide users.

Epson
EcoTank Photo ET-8550 All-in-One Wide-format Supertank Printer
Low-cost tank prints large, but suffers paper jams, color issues.
Canon
PIXMA G660 MegaTank
6-color MegaTank offers quality, low cost; but slow, poor display.

Canon
SELPHY QX20
Portable dye-sub sticker printer; but no battery, paper scarce.
Canon
PIXMA PRO-200
Pro large-format quality; but high ink and replacement costs.