I have read the books and watched all the movies.
Ben is not evil and did not tell Luke to kill Vader or ask Yoda to train Anakin.
As for climbing on the ship with Padme' that was his assignment. If you read the books the council and not Ben chose to treat Anakin as a problem because of his friendship with Palpatine. Palpatine was the problem in that he kept interferring with Jedi business.
The only problem Ben created was one of being a sexy beast of a man and that made Anakin jealous because he thought Padme' preferred the sexy older more mature type. When Ben exited the ship it looked like Padme' brought her lover with her. they cut this out of the film but it is definitely in the book.
A great deal of time was spent trying to get people to focus on Jedi not being able to make love, to give into their emotions and feel love, and Anakin was the big exception and failure to that rule. His jealousy is what killed Padme'.
The huge plot twist that never made any sense was hiding the babies for so long. It is possibe that they thought Vader was dead and the children could defeat the Emperor down the way but it seems as though they hid the babies from Vader thinking he would kill them too. Again that may be jealousy saying that Vader thinks the babies belong to Obi Won. Some how I think that was Lucas' original intent to have the big secret be that Ben is Luke's father. Of Course in the first movie Ben is like the wizard Merlin handing Luke Excalibur and telling Luke he could be king if he rescues the princess. that would mak Hon Lancelot and Leia Guinevere. The Emperor become Morgana and Vader becomes Mordred. This all changed in the second book which turned Luke into Hamlet. By the third book everything was a mess and lucas wanted to go home and raise his children so he ended the saga the way he did and came back when his kids were older to explain to them why the story ended like it did. The second saga is Frankenstein with Anakin as the doctor and the monster.
The moral of it all is we end death by having children.
This is what you get for asking for opinions, I hope it is to your liking.