Nobuo Uematsu is definitely a must. While I felt he reached the peak of his career in the mid 90s with FFIV-VII with FFVI being his Magnum Opus, he still occasionally comes out with some great tracks in the last few years since leaving Square.



Other favorites also include Yoko Shimomura whom most people on this forum know her for her work on Kingdom Hearts but I feel her greatest work was with the soundtrack to Street Fighter II







Hitoshi Sakimoto is another composer whom everyone on this forum probably knows for his works on the Ivalice games, but sadly I feel its his more contemporary OSTs that are far better than the Ivalice ones like what he did for the original Shin Megami Tensei and Breath of Fire V





Course my other top guy I love is Yasunori Mitsuda whom with the Xenogears Myth album may have finally overtaken Nobuo Uematsu for me as my favorite gaming composer.





Its like he picked my brain for all the best tracks to arrange.