Don't even try to satisfy watch snobs, you might get one to admit liking it but the others will still be all, "ok, but it's not a Rolex Sub."
They use watches as the tool to rank each other in the classic locker room measuring contest. In that game, you go big or go home.
Buy exactly what you like. Be mindful a large watch has more than just the size across the case which can make or break it being comfortable, the distance vertically from lug to lug has a significant impact. Wide lugs make the bracelet or strap stand off from the wrist too much, short lugs get them to fall down the wrist better. The position of the crown also affects wear, one at 3 will dig into the back of your hand, move it to 4 or even over to 9 and it's out of the way. Pushers are the same - I have a chronograph which refuses to keep running because the start/stop pusher is too easy to depress and the back of my hand turns it off.
Size is also a marketing issue - a watch that fits and wears well may be measured in a way to maximize the posted number as it's always a game of who's bigger. With all that in mind - numbers are not a valid expression of whether you can wear the watch. It can vary up to 4mm, and many on watch forums report it. "I can wear this but I can't wear that" is a frequent comment, with the first being larger. Again, numbers are not a real accurate way to compare.
Then there are photos on the net, and when you take a pic a 6" from the watch on the wrist, it distorts proportions and makes it look huge on someones wrist. At 18" things get back to normal. What pics on the net do is scale up the dial and it's details, so you can see them in all their incredible glory. Be careful, tho. To get that same view, you have to put it in your face six inches away with a lot of light coming over your shoulder.
It's not going to be like that in real life. Be careful about choosing a busy design if you actually intend to read the time on your watch frequently. Busy multitrack dials with extra registers become a confusing blur too far away, and they become wrist jewelry, not a timepiece. Just be sure of your purpose going in and there will be no surprises.