He doesn't like him.
When Lord Voldemort asked Dumbledore for a job, he was still alive.
Yes. Albus Dumbledore had powers and wisdom Lord Voldemort could only dream of. However, Voldemort also knew things Dumbledore didn't or that Dumbledore would never use. Dumbledore's understanding of love alone makes him more powerful than Lord Voldemort as his failure to understand led to his downfall on multiple occasions.
In the end, he's loyal to Dumbledore.
The most powerful villain is Lord Voldemort. The most powerful wizard is either Dumbledore or Lord Voldemort. This has not entirely been established; however, it is stated that Dumbledore is "the only one he [Voldemort] feared".
1) Lord Voldemort wanted him to, 2) Dumbledore wanted him to.
The wand was buried in Albus Dumbledore's palms when Dumbledore was buried. It was later found by Lord Voldemort
No, Lord Voldemort is the main antagonist of the series whereas Albus Dumbledore is a protagonist. If you are referring to which character is better, then that would be down to your own personal opinion. Both are well developed characters.
Snape follows Lord Voldemort because he needs to know what he is up to so he can report to the portrait of Dumbledore, hanging in his office.
Yes and No. Right before the fall of the Potters and Voldemort, Snape switched to being in the service of Dumbledore. After Voldemort fell, Snape was used by Dumbledore to keep a lookout in case of Voldemort's return, as well as to keep an eye on the remaining Death Eaters not in jail. Once Voldemort returned, Dumbledore had Snape serve Voldemort, yet he was to rely the info back to Dumbledore. Snape being a servant of Dumbledore is very easy to miss in the books and the movies. In the Half Blood Prince, when Snape kills Dumbledore, it was due to the fact the Dumbledore had arranged for Snape to kill him, if Harry was to kill Voldemort.
Albus Dumbledore. Lord Voldemort was a close second. 1) Albus Dumbledore 2) Lord Voldemort 3) Grindelwald 4) Mad Eye Moody 5) Minerva Mcgonagall
Albus Dumbledore visited him at the orphanage on his eleventh birthday and told him.
No. Dumbledore would never have allowed Voldemort to kill them. He thought they were protected in a safe house and was unaware they had been betrayed until it was too late.