1) I've looked over your quote, and it doesn't prove anything. What is power to you? Certainly, Palpatine was the strongest militarily and politically. But I submit that any Sith up to and including Exar Kun would stomp even DE Sidious in a fight. That's the point of the versus forum.
2) I've never argued that Sadow could just rip the core from a star on his own power. However, you discount the fact that Sadow created the means to do so. Where is Palpatine shown to create any object to channel the Force?
And please, don't insult my knowledge of Exar Kun. He was barely a Jedi Knight by the time he met Freedon Nadd, of course he wasn't powerful. He hadn't even embraced the Dark Side yet.
3) You seem to forget that spirits lose their ability to manifest themselves over time. The only reason Kun was able to, for example, was because he used his temples and he could feed off the Jedi there. And you seem to think that being tricked by someone is evidence of their inferiority. Nonsense.
Proof that PT-Era Jedi were weaker: No force powers on Vodo's level (ordinary objects more powerful than lightsabers). No force powers on Arca's level (literally taking droids apart with the Force, battle meditation). No battle meditation period, actually. No force powers on Odan-Urr's or Nomi Sunrider's level (blinding someone to the Force, more battle meditation).
That and they lived in a time of relative peace, unchallenged for a thousand years. Sith War-era Jedi lived in a time of great tumult. They were battle-hardened and headed up the military (Dace Diath, Shoanes Culu, and Qrrl Toq took command of the Republic fleet pursuing Aleema in Sadow's starship). In fact, there's little evidence of Republic political involvement in the Sith War. It seems that the Jedi themselves direct the Republic military in large part, unlike in the PT where Palpatine does.
4) Read the damn comic. Exar is shown in TSW with many baubles on his person. It's ludicrous to think they're just decoration. Either they're recovered artifacts of Sadow's or he created his own based on ancient Sith designs. True, it's only known for sure that Exar recovered one amulet of Sadow's, the left gauntlet connected to a pauldron. However, in TSW his right hand is shown with a similar gauntlet, leading one to believe that he either constructed it himself or found another.
And I question your literacy yet again. Ulic Qel-Droma does not have a gauntlet amulet. He has a proper amulet, given to him by Aleema Keto, that hangs about his neck. Period.
5) Don't be ridiculous Lightsnake. If the war were so unimportant, and the Sith so small a threat, A) the Republic wouldn't have bothered hunting the Sith down and B) the comic wouldn't even have been written. There has to be some conflict in a story or else it's not worth bothering with.
Taking what you're saying into context, you're basically saying that the Sith Empire is Zimbabwe and the Republic is the United States, and Zimbabwe attacked and didn't do much, got curbstomped, and ran away. I say that's nonsense. The Sith were a great threat, they did much damage, and the Republic had to respond with extermination.