The little ones are better than nothing - up to a point. But there is no comparison between the two in ampacity. If the dead vehicle is easy to turn over (small displacement 4 cyl with moderate compression ratio), the 10ga will be OK up to but not including a totally dead battery (or shorted cells or...) and they will be very iff in cold weather - meaning around +10deg-F or colder - if the dead vehicle is cold soaked.

If it's cold or the dead battery is really toast or it's a large displacement engine etc etc - you cannot get it done with the skinny wires. Figure you might be able to punch 50 amps thru 10ga wires - very briefly, and at a huge cost in terms of voltage drop. The larger cables reduce or eliminate the voltage drop AND carry vastly more amps. Even so, in extreme cold (eg -40F) it may not be possible with any spring-clamp cables - it's hard to punch several hundred amps thru those teeth. I twice had to resort to some extreme measures to jump folks at -50F or colder back in our interior Alaska days.

I won't carry anything shorter than 16' or less than 4ga, and I stick to the ones with decent low-temp insulation. Her in the MidWest, too many times I have helped folks who couldn't get it done with the cheapies - put the big cables on and the dead car lights off immediately. Biggest problem I have encountered are the protrusions on the jaws that supposedly let you sneak onto side terminal batteries - they can lead to an occasional bit of excitement in a crowded engine compartment. I have zero vehicles with side terminal batteries, so you can guess what I'd like to do with those...

Tom