Either one is fine.  It’s really more of a personal preference. 

Maybe you’re more of a traditionalist and love the smell of an evergreen.  Then a real tree may be for you. 

• If you have a lot of large ornaments to display, the branches of firs are airier and stronger which is ideal. Firs have short, flat needles with blunt ends. They retain needles well, but they're usually marked.
• Pine trees have branches that grow closer together for a denser look. They're ideal for layering on the lights. Pine branches are more flexible and have long, soft needles.
• When selecting a tree make sure that the trunk is straight. Straight trunks sit better in the stand and also have better balance. It's also important that if you're selecting a tree from a tree lot, make sure that the tree is not too dry.

If you don't care for the mess of needles, or if allergies prevent you from having a live tree, try choosing an artificial tree for your holiday decorating.

• Prelit artificial trees are a great way to minimize setup and cleanup. However, prelit fake trees are generally more expensive, and you can't change the size or color of the lights from year to year. Swapping burned-out lights for fresh ones may also be a challenge. If you choose a prelit fake tree, look for one that is labeled "continuous on" or "with burn-out protection." This means that if a single bulb on the strand burns out, the rest of the lights stay on.
• Artificial trees come with two types of branches -- hinged or hook-in. Hinged fake trees, which consist of just a few parts, have permanently affixed branches and are generally easier to set up. Hook-in branches are individually hooked into a specific spot on a central tree pole. These fake trees take much more time to put together and cannot be prelit, but they also tend to be less expensive. 

Find out more about choosing real trees here and choosing fake trees here.