2253 & 2260
I already have a 2172 and don't need another! And I have a 555 Husqvarna, the 2260 is essentially a 555 red with the better ignition and top end from the 562xp. Has the rev boost and a bit more power. And the 2260 is better looking than its orange cousins. SO I would pick a 2260 first as that is a saw I would use for.... just about everything. AND a 2253 is a better looking 550xp. Should have a new generation small saw for limbs and smaller work where light weight matters.
Having said that the 2252, 2258, 2166 are about the best bang per buck saws on the planet. And they look better than their 545, 555, and 365xt cousins as well. An awesome line up they have right now. And they still have some old things like their version of the venerable 455 Husqvarna and 450 Husqvarna's in red for the occasional user of saws.