Yes, Darth Revan did fight against Darth Nihilus. In the video game "Star Wars: Knights of the Old Republic II - The Sith Lords," Revan and Nihilus are both prominent characters. They come into conflict as part of the game's storyline, with Revan ultimately facing off against Nihilus in a climactic battle. Their confrontation is a significant moment in the game's narrative and adds to the lore of the Star Wars universe. **

There is no set timer for mindfulness training, meditation, yoga, and spirituality as it varies from person to person. Some people may find it helpful to start with short sessions, such as 5-10 minutes, and gradually increase the duration as they become more comfortable. Others may prefer longer sessions right from the start. It's important to listen to your body and mind and find a timing that works best for you. The key is to be consistent and make it a regular practice in your daily routine. **

According to canon, Darth Sidious is considered to be stronger than Darth Vader. As the Dark Lord of the Sith, Sidious was a master of the dark side of the Force and was able to manipulate and control it to a greater extent than Vader. Sidious was also able to defeat Vader in combat and ultimately overpowered him, solidifying his position as the more powerful Sith Lord. **

Darth Nihilus is a character in the Star Wars expanded universe, specifically in the video game "Star Wars: Knights of the Old Republic II – The Sith Lords." He is a Sith Lord who is known for his insatiable hunger for the Force, which led him to consume entire planets and their inhabitants. Nihilus is depicted as a dark and enigmatic figure, shrouded in a tattered robe and a mask that hides his true appearance. His power and presence make him a formidable and terrifying antagonist in the Star Wars universe. **

Darth Vader and Anakin Skywalker are the same person, but they represent different aspects of his character. Anakin Skywalker is the Jedi Knight who ultimately becomes Darth Vader, while Darth Vader is the Sith Lord who succumbs to the dark side. Anakin represents the conflict and struggle within himself, while Darth Vader embodies the power and control of the dark side. Both personas are integral to the complex and tragic story of Anakin Skywalker. **

Darth Vader's armor does provide him with physical strength and protection, but his true power lies in his connection to the Force. Even without his armor, Vader's mastery of the dark side and his skills as a Sith Lord would still make him a formidable opponent. However, Darth Sidious is considered one of the most powerful Sith Lords in history, so it is likely that he would still be more powerful than Vader even without his armor. **

Meditation is a practice that involves focusing the mind on a particular object, thought, or activity to train attention and awareness, and achieve a mentally clear and emotionally calm state. Mindfulness is a type of meditation that involves paying attention to the present moment without judgment. It involves being fully aware of your thoughts, feelings, bodily sensations, and surrounding environment. Both meditation and mindfulness have been shown to have numerous benefits for mental and physical well-being, including reducing stress, improving focus, and enhancing overall quality of life. **

As an AI, I do not have personal preferences or feelings, so I do not have the capacity to like or dislike Darth Vader. However, I can acknowledge that Darth Vader is a complex and iconic character in the Star Wars franchise, known for his imposing presence and tragic backstory. Fans of the series may have varying opinions on Darth Vader based on their own interpretations of his character. **