I like some jimping, especially on knives that are designed to "choke up" on, like say the Spyderco Manix 2, or on those with short handles where the thumb tends to naturally ride past the handle onto the blade spine. Some knives go overboard with it.
Everyone probably likes slightly different jimping aggressiveness, but what I don't like is all these tacticool knives we see with jimping that has zero function and is only there for looks. The list is long of knives with jimping that provides no additional grip, (ZT 0562, CRK (my 25 is okay, the Umnumzan is poor), Les George VCEP, Southard AVO.....) Some like the ZT 0560 and Strider SMF go overboard IMO with the jimping back on the handle creates a knife that's uncomfortable to grip tightly in extended use, but probably works great with gloves on.
If I had to pick I'd say Spyderco does the best jimping, the teeth are small and closely spaced so it does not really chew your hand up, but it's enough that it provides great grip, especially if you bear down on it.