Maybe not the right title but this is something on my mind for a while.
Warning...this is so rant and walls of text, this may turn off many. XD
In the Original Trilogy, Darth Vader was a great villain with a tragic past. He was a large threat to an entire Rebellion and was famed for slaughtering his former Jedi comrades. As time went on in the films, his amazing power was seen in shock and awe (choking men to death with the force from great distances, his skills with a saber are near unmatched, throwing objects at people with his mind, blocking blaster bolts with a hand, etc). All in all...He was a badass.
But ever since the prequels and the material that follows...I seem to have seen one too many debates with Vader that now saddles him with a severe decay, most notable being "Vader in the OT is nothing more than a crippled old cyborg who can barely beat an untrained Jedi and an old man."
I for one...Think that is total BS.
Yes, Revenge of the Sith made it clear that Anakin Skywalker's fatal injuries has completely lowered his force potential as the Chosen One and that as Vader, he will never see his true potential. His cybernetics indeed made him more machine than man and has hampered his once agile movements in saber combat. But seriously...Have people forgotten what this man has done in the OT that makes his prequel self look tame in comparison?
Movie-Wise, Anakin is indeed a faster fighter and at RoTS is perhaps the greatest master of the Djem So lightsaber style who is only flawed by arrogance and usage of force techniques at its most basic, though very strong in using them. Vader is not as fast, but has spent years on improving his Djem So, especially given his condition. His greatest change is his lack in arrogance (being burnt to a crisp can do that to ya) and thinks rather tactically compared to how his former self usually resorts in combat as well as his somewhat broader sense of using the force. Vader may never fight like Anakin ever again but he did improve his fighting form to great levels.
EU-Wise? Anakin when pulling off something outside his usual MO, is damn impressive and worthy of being the Chosen One. Using a force scream to collapse an entire building, able to react to sub-light movements in a starfighter while even the most skilled non-force sensitive pilots deemed such reactions damn near impossible, and defeating Dooku who was once known as one of the greatest knights in the Order? No doubt bout it, despite his issues, Anakin is no small potatoes as a force user. As for Vader, he honed these powers again to broader yet brutal uses in a usually basis during combat. His speed, despite not as fast, are ridiculous when he is let loose (able to kill a man so fast that the latter's Jedi bud didn't even realize it despite both being in the same room, faster than the human eye can perceive in heated combat), able to kill groups of Jedi and fighting off the best of them in heated duels (the Dark Woman, Roan Shryne), just won't die under extreme conditions, and actually being well versed in Sith force abilities (sure Palpatine isn't too happy about Vader's loss of potential but he was still the best out there). So yeah, while again Vader will never reach his potential...He was still a monster warrior.
And while Luke and Old Ben weren't too impressive to the eyes...Consider the fact that Luke despite limited experience was considered a major threat that Palpatine at first wanted to kill. That this guy completed his training and earned his knighthood in a very short time span when most Jedi don't attain this rank that fast despite their years of training. That experienced Jedi such as Old Ben and Yoda were backing up on as their sole hope (or Leia but whateves) against the Sith they couldn't beat...Yeah, it kind of speaks a lot for Luke. EU-Material on this timeline only does make him out to be a growing warrior who gets better and better. And lets not talk about what he eventually became when he reaches as Grand Master. Old Ben may have severely diminished his dueling abilities but he was still an accomplished Jedi Master. While Vader couldn't get past his Soresu form...Ben has a near nonexistent offense to capitalize, further hindered that Vader was no longer fighting like an angry emotional Jackass. While Old Ben wasn't the warrior he was, he was still a tough old man in a duel.
So all in all...Can we really say Vader sucked compared to his younger, less injured as Hell, self? I just don't think so. This is a man who had to rebuilt his entire fighting style as well as his abilities and it paid off immensely. While he will no longer find the potential he was meant to reach, he sure as Hell didn't spent years crying over it.
....Yeah, you guys can shoot me down for this but it's just my opinion. XD