Lets' see... not sure if I can think up five stories since they're all so good, but here are a few who really stand out in my mind:
AWAKE IN A DREAM (NuuoaEclaire)- one of the first fanfictions I read and her descriptions are beautiful. I love they way she weaves her story and the character interaction and dialogue is amazing.
UNEXPECTED STARS (StinkFace)- what more can I say? She sets up a thurough mystery and string of events, conflicting emotions and teenage drama that we so love, except there is such a force behind it- you can FEEL it.
A NEW TWIST (jennieman)- she sets up real-life problems in a believeable way, and a pairing that really, truely makes ense- but they're not heads-over-heels for each other at all right now.
A SERIES OF UNFORTUNATE DESCENDANTS (Pink Rapid)- The humor and situations in this story are priceless. The writing is good and the dialogue and chaarcter interaction are very well-done.
SKIN DEEP (Twill)- It's all amazing. There's one plot-twist after another, no character is really batter than another and they're all IN character. they react well to things, think like normal people and Cronus's overall plot is something to behold. The entire story (and the sequel Wind Garden) are up on fanafiction.net