What do you want to use them for?
For Hunting, I have a pair of Leupold Mojave 8 power (x 42 maybe? I can't remember). They are light enough to carry all day and are very very clear and easy to use. A friend who is a retired game warden tried them and liked them so much that he purchased them , but in 10 power. He regrets not getting them in the 8 power because the 8 power is good enough for glassing across a long field and the extra magnification he has is not needed and just means that his are less steady. For quick use offhand, unless you need something for longer ranges, I'd think seriously of something much lower than 12 power. If you are using them with a tripod while looking for Groundhogs or prairie dogs, it's a different story.