Let's be honest out of all the cuts this one is the most consistent and least problematic with the best flavor profile. The V cut can lend a tighter draw and add to the bitterness of a cigar. The punch is one of the most frustrating as it is rarely consistent producing a difficult draw. The hole punch also really increases the bitter flavor if you're not careful on how you smoke your cigar.
So, the guillotine is my number one choice if I have one.