Depends on what you want to do.
Even if you invest a lot you can’t get a surprisingly high Critical Chance, 150 is A LOT even if you’re too geared. It’s high to the point you notice instantly when Swift Step buff wears off because it reduces the odds that you’re doing critical hits.
If you’re going all the way to gear your character too much and prolly even Orange Weapons/Solmiki gears and focusing on Critical Rate, Swift Step for me is the most viable in long term.
If you know you won’t be focusing on Critical Rate nor gearing too much, Appraiser can do the job with buffs and debuffs. I honestly don’t like it because Blindside is an applied debuff over AoE so you won’t crit that much on really big groups or map-wide farming. As far as Blindiside is strong against bosses, it is not necessary. Overestimate can be good but if you’re going to plan on long term gearing, you do get decent bonus from example +13 to +16 but as example of my playstyle, I wouldn’t trade +3 anvil state to the extra Critical Rate I get from Swift Step.
Also, if you’re going Ranger C2 route, I also prefer full Ranger C3 over Ranger C2 Appraiser 1 for the extra Bounce Shot AoE, which in turns, require a good crossbow and to be geared to make use of the AoE skills Ranger gives.
Everything falls on “what you want to do”. For a dungeon slave, yeah, Appraiser, cheap silver making with less investment.