This threads alive again yay!
First of all, the only Tsunami i imagine Goku could beat, her in the ship form. Simply because ships are easily broke. But that doesn't mean he would beat her, just the ship. And before he could do that damage, should just destroy him. Most of the main characters could beat goku (Tsunami, Tenchi, Z, Washuu etc...)
Don't know what your talking about with the silver surfer but Goku's death have nothing to do with it (this was brought on another forum) but you also have to realize why he died. The first time he sacrificed himself (against raditz) and he did the same with Cell too. But i'm not getting involved with that one.
Knight, is that first image you posted on your last post really silver surfer lmao he don't like silver! (Joke btw)
Ki speeds, i do actually think that's dependant on the users ability to put force behind it. But there is no proof there. For example in the Anime Krillins destructo disk go's pretty fast, whereas in the sayain saga he did a blast that moved pretty slow.
Not only that if Ki Blasts ARE light, then would the z fighters actually be able to touch them as its light? And would it not damage them either as its jsut light?
One thing i did think of is, how would they show Goku fighting at light speed? In the anime, there is a few lines that do some stuff then sound happens which to me means they are equal to light or faster.
The only problem with dragonball/z is that there is no proof about anything. Strength, speed, powers etc. And one advantage Superman has over DB/Z is how long it's been releasing for (even post crisis). As it's been releasing for so long more encounters have occured, thus more proof which is one main reason why there is more evidence for superman to disprove theories for dbz.
Yakkan, yakkun or whatever his name is doesn't have black whole properties. That's the msot retardest thing ever. Giving the Goku followers bad names! (Goku followers as in people who believe he would win against Post Superman.)
Have fun :P