its Kintaro and Motaro actually. it may sounds weird for someone but i really dont like MKDA and MKD and for the little time i play MKDA i found Moloch to be hard for me lol

Mostly a matter of opinon but my fav was Kintaro...also he kicked my ass A LOT before I figured out how to beat him.

My favourite Sub Boss was Kintaro.

Goro was weird looking in MK1. I also didnt like how he jsut appeared in MK4.
Motaro was OK, but not as menacing as Kintaro. Moloch wasnt very difficult to beat. Noob-Smoke was a lame idea, and had no tie to onaga, so i fail to see why they were the Sub Boss anyway.

Kintaro was big, mean looking, menacing, and pretty difficult to beat.

I thought Kintaro and Moloch were the best sub bosses.

Kintaro for me! lol that friggen guy had my slammin the controller to my SNES so many times, Thang shattered!! lol

Goro- hard, but not in a fun way, he was frustrating
Kintaro- Fun, challenging and once you found out how to beat him you can have a hell of a good time
Motaro- Awesome looking, but he was kinda cheap, same power moves over and over.
Goro (MK4)- Kinda showed up out of nowhere, cheap hitting and had a weird look to him over all.
Moloch- Cheap CHEAP CHEAP!!! (Thats all i have to say, i used cheap moves on him becuase thats all i could use to win)
Noob-Smoke- Mini-bosses? i think not.

have to say kintaro, he was the hardest one, seemed almost invincible, and had the teleport jump attack, which was awesome.

goro acted retarted in mk1 that he was easy

motaro was easy, just get a good kombo, which i did for a lot of characters

goro in 4 was jst to cheap

moloch is easy, like motaro

even though they are before onaga evry single time, i don't think noob-smoke count.

Noob-Smoke was a pretty neat idea and was cool, but Kintaro in MK2 was by far the best. Also it seems like Shang Tsung was always before Kintaro so that made it perfect.

Kintaro for me also. Goro is a classic, but I think Kintaro will always be like the bigger, badder Goro.

Yah that's pretty much how I look at it as well.