I prefer the guillotine because I have found the punch and V-cuts to create a bit of a tar buildup over time that can cause some smokes to go slightly bitter in the last third. Make sure you splurge on a sharp cutter. A dull blade can crush the cap and/or cause you to spit out shards of tobacco every time you puff on the cigar. You can clearly see that the blade is well honed and polished on my carbon fiber Xikar.