Yes, all of them have the same questions but in a different order -- different "order by" clause in SQL.
Most Votes
By default, one should go with "Most votes" as these are expected to be the best questions. But some very nice questions are usually not voted up by any and hence go down this list. Similarly, bad questions like undefined behaviour can come up here.
Featured
This list was made to include the must see questions in each subject.
Previous GATE
This shows only previous year GATE questions -- one should first complete this before going to non-previous GATE questions if ever needed.
Hot, Most answers, Most views -- these are not really relevant for GO.