Shit, I had my whole post and it disappeared. >
Unfortunately, I couldn't find any especially nice lips from TNG, but here are some others.
First up, a very angry looking Dax.
It's a shame he was so terribly boring.
The always pretty Seven, looking lovelier with a smile.
A (small) vote for (Mirror) T'Pol, although her lips would look nicer if she weren't pouting all the time. They're poofy enough without it.
Dr. Bashir... he also has very nice teeth.
And finally little Jake Sisko... well, not so little anymore. Our little guy is grown up. (sniff)
...
Sorry, I'm sleepy.
Honestly, I think the women of TOS were the finest, lips and otherwise. Still, a fair share of beauties in any series.