It depends on what I'm in the mood for at the time, but this is the general formula that I go by.

Skinny/short guys look super cute with oval/round body/facial features.

Muscular/average guys look sexy with triangular body/facial features.

Overweight/tall guys look hot with squared body/facial features.

However, I'm of the opinion that "the clothes (+accessories) make the man" and so a big part of describing a real head turner of gentlemanly real estate, is largely in the clothes.

Skinny/short guys (the forever youngs) are imo at their most attractive when playing off of their naturally boyish charm and youthful exuberance. Their "look" needs to be very stylised and trendy, as though every aspect of their physical being embodies "the new".

Muscular/average guys imo are at their most attractive in well fitting dark shirts, black/near blacks, burgundies, indigoes, and similarly dark coloured jeans/trousers. Those guys who downplay their sexiness, which only makes them even more sexier. Accessories are at a minimum, a watch, a ring, an earring, a piercing, these all have an asymmetrical quality to them.

Overweight/tall guys are imo at their most attractive when they bring their most striking physical feature (whether that be their weight, or their height) into the foreground. There is something of an ongoing persecution against "fatties" and "giants" in the western world, and it has turned many among this lot bitter, and rotten, rife with self-lothing. However, for those that rise up above it all and learn to love themselves, their is confidence there that is extremely hot. Bright pastel shirts, light off-white trousers, everything that screams loud and proud, that they are there to be seen and heard.