I think 154CM is still one of the best overall steels for a pocket knife. I love super steels and tool steels, especially M390, S90V, D2, and M4, but 154CM has a great combination of ease-of-sharpening, corrosion resistance, edge retention, and toughness. I've never had a 154CM knife chip during normal use, but I cannot say the same about some "super steels", such as S30V. 154CM will tend to roll rather than chip, which is preferable.
I also have no problem sharpening very hard steels; they take longer but that is okay since they hold an edge longer. But there is something to be said for having good edge retention, and still being able to quickly get an edge back with very light stone work or stropping. This is especially advantageous when in the field or at work. Time can be a factor.
I put VG-10/ATS-34 in the same category as 154CM. These steels leave very little to be desired, but the knife nut in me just loves the idea of having the newest super steel, or a blade made from tool steel designed to drill into other steels like M4, or to sheer other steels like D2. When it comes down to it though, that doesn't make them better steels for a knife.