As always, I like the characters that are a little bit... different.
Data => Odo => Holodoc => Dr.Phlox

Ah, and concerning Data's cat *clears his throat and raises his right hand in which he holds a sheet of paper*:
Ode to Spot
Felis Catus, is your taxonomic nomenclature
An endothermic quadruped, carnivorous by nature?
Your visual, olfactory, and auditory senses
Contribute to your hunting skills and natural defenses.
I find myself intrigued by your subvocal oscillations
A singular development of cat communications
That obviates your basic hedonistic predilection
For a rhythmic stroking of your fur, to demonstrate affection.
A tail is quite essential for your acrobatic talents
You would not be so agile if you lacked its counterbalance
And when not being utilized to aid in locomotion
It often serves to illustrate the state of your emotion.
O Spot, the complex levels of behaviour you display
Connote a fairly well developed cognitive array
And though you are not sentient, Spot, and do not comprehend,
I nonetheless consider you a true and valued friend.