I am planning to buy an apartment in kuala lumpur area and have been looking at some furnished and unfurnished units. My question is whether a fully/partially furnished unit is more worth the money to buy than an unfurnished unit? Considering that the price difference is between rm100k to 200k

It depends on how good is the furnishing and whether the furnishing is close to what you desire. A good way to measure is to find out roughly how much does the furnishing cost, minus that out from the total selling price so that you know the price psf for a bare unit. This way you can do an apple to apple comparison.

Personally, if you are comparing similar size condo of around 1000sf, I would rather buy a bare unit as 100K can do a pretty nice renovation for a 1000sf space.

yeap buy without furniture better, can buy ur own furnishing