I think Jay looks awesome because he reminds me of a comic book character. Most noticeably the hulk. Imagine Jay green with the purple pants. He would look like the hulk.
He's that fucking big and dense looking.
I can appreciate the raw dense bulk that he has, but no one imo has ever and may never beat Arnold for a few reasons.
1. Best biceps of all time imo. There have been quite a few bodybuilder's with amazing guns, but Arnold's were both huge and aesthetically beautiful.
2. His chest. I still think he has the best chest of all time. Some of his side chest poses it looks like you could balance a glass of water on his upper pec.
3. His height and overall "look". Arnold in the '71 Olympia looked unbelievable. His legs weren't poorly developed, at least not in his last couple of Olympia's. He just had long legs. This gave him a sweeping almost sculptured look despite being so massive in the upper body.
4. Last, but certainly not least his charisma. Don't ever hate on Arnold. Arnold is the fucking man.