neither are particularly great. table top folding are great on trails or parks, much better than both and weigh a considerable amount less. spend some money and you get good tyres
Personally I am a huge fan of Holy Rollers. I have been using them for years and years without any issues. On my 26 x 2.4 I run them at 50psi with regular tubes. As long as you use them for what they're intended for they will work great. That intended use being hardpack and street use.
I would say Holy Rollers, they have much better grip. K-rads so far have been mediocre. I haven't any troubles with punctures but I have slid out on surfaces that the tires really shouldn't have had any troubles with mainly when its raining.
i didnt like the fact that holy rollers the sidewalls ripped out, easily, and punctured really easy, i personally am rocking krads now, they roll alot faster a lil lighter, i dont mind them so far, but i may try swalbes or dmr motos, they seem pretty good also, its all personal opinion
well i haven't used holy rollers but i ran a set of 24x2.3 k rads front n back and they were good if it was dry but in the wet i would loose traction just from pedaling! i wouldn't recommend them, there are better tires out there.
i have krads right now, ive only slipped out on them once, and that was when i was going around a turn and hit a wet spot. they handle great for me at the DJs, on street, and just cruising. never had a problem with punctures, and ive ridden them through thick brush and weeds. theyre great tires.