Most recently I was using Steelfeathers Enchanted. http://www.minecraftforum.net/topic/479158-32x132-steelfeathers-enchanted-pack-updated-923/ It's really cool looking, it makes everything look Victorian Era. Its not updated yet though.
http://www.minecraftforum.net/topic/72747-faithful-32x32-pack-update142-support-142/ Sorry for messed up post, some things just crapped out of here. (Im on my phone )
Recently, I've gotten into using the painterly pack (link in spoiler) and I think it's pretty cool because it has an interface on the website that allows you to customize all sorts of things, and even comes with a few preset customizations like Halloween or Christmas themes. http://painterlypack.net/
I am to lazy to post links to these. But here are the ones I use: Conquest Coterie Craft G-Craft Good Morning Craft Isabella II Johnsmith Ovo's Rustic Redemption Sphax PureBDCraft Summer Fields R3D Craft.
I'm using Honeyball's texture pack, it's very popular in germany. there are a lot of different 'modes' of it like 'halloween', 'antik', 'xmas' ,... my favorite is 'Remake' [link to all]; [link to download]; Edit: It's already for 1.4.2 ~Lukas
I would have to say sphax also, it has been a faithful for many many months, and always seem to return to it. Minecraft just isnt the same without it.