Taek Jegal was one of the most powerful GOH characters early on but at this point he has definitely been surpassed by several characters. Daewi is one of them as the guy has really ended up becoming a true threat. His fists would be able to destroy Taek in a single blow to the point where the guy would not be able to regenerate. Daewi’s barriers would also be too formidable for Taek to break through with pure power. Ultimately this wouldn’t even be close. Daewi wins.
Gothmog is a powerful beast with abilities that far exceed those of ordinary mortals. A single punch would decimate many opponents but Taek Jegal isn’t one of those fighters. He would be able to easily counter any of Gothmog’s moves and then some. The reason for this is that Taek is a bit of a monster himself with his shark abilities. Gothmog just won’t be keeping up here. Taek Jegal wins.