Data is one of my favorite characters in all of Star Trek lore. He's so sincere and earnest, yet he often falls short in his attempts to become more human. The best that others can do is patiently appreciate the effort and be encouraging.
A prime example is in the TNG episode "Schisms", in which various crew members are subjected to nighttime alien abductions. This episode is also the origin of the fondly remembered demonstration of iambic heptameter known as "Ode to Spot", a poem written by the ship's android describing the qualities of his feline companion.
Despite its misspoken opening line, I love this artistic effort of Data's. Although his audience members roll their eyes, is there anything truly wrong with the piece? It's clever, it rhymes, and it shows true affection.
The only thing that could make it better — is if it were set to music:
Add "hip" to the list of Data's qualities.
A version of this rap is also included in a longer nerdcore dedication to Data.
(Hat tip to ROFLrazzi)