This is my opinion on the Touhou games, old and new, but please no arguing like " PC-98/Windows is better than Windows/PC-98 " if you had an opinion keep it up.
Highly Responsive to Prayers - The most interesting part of Touhou and the Ying-Yang Orb bouncing is fun btw, somewhat hard.
The Story of the Eastern World - The more interesting story type. And its more easier to make it a scrolling type.
Phantasmagoria of Dim. Dream - The more fun Touhou game of all PC-98. Also can see what the boss is doing, I hope ZUN did it again.
Lotus Land History - A great concept, and better screenplay and an interesting idea.
Mystic Town - One of the best games, I like Alice's old design, which made me miss the old design alot.