There is no reversal method outside of Warfarin. For that reason alone I would keep taking Warfarin if I had to.
I am currently not taking anything other than aspirin. Went off Warfarin after nearly 9 months.

There is a reversal agent that is doing very well in trials, however, it's not FDA approved as of yet (probably mid-2014).

Even without the availability of a current reversal agent, most physicians are finding controlling the bleeding with the new oral anticoagulants is not a problem. Keep in mind, these new medications are out of your system within 24 hours (very short half-life). Bleeding is no worse than while on Coumadin. At this point I think the versal agent is something nice to have just in case. When I look back at the 20 years I was on Coumadin there wasn't once that I needed Vitamin K to reverse the anticoagulation cascade. But, I have to agree it's a chance you take and patients needs to weight all the pro's and con's when making their choices based on what they feel comfortable with.

An internist at the hospital told me that a shot of vitamin K to reverse coumadin immediatly was a myth and that it took time too.

It takes about 12 hours for intravenous vitamin K. I had to take vitamin K orally once because of a high INR and it dropped my INR to 1.2 within 24 hours. If it's life threatening bleeding, they incorporate plasma.

I am also on only aspirin right now, after five months on warfarin. While I wouldn't call warfarin a party, that's probably what I'll go back on if further testing says I need to be a lifer. Drug cost will be a major factor for me and the newer drugs aren't cheap.

I think the more options there are, the better, because providers can then treat on an individual basis. My doc said he has so many warfarin patients who are simply not compliant and it causes all kinds of problems, so he looks forward to using some of the newer meds at some point but he's not ready to do that just yet.

If I just had my first clot and was going to be treated with one of the new anticoagulants for 6 months, I'd have no problem with that. But since I'm on this stuff for the rest of my life, I kind of just want to wait and see what results are from long term use which is where my doc is at as well.

I am not worried about the non reversal aspects of the new meds. I mean, I've been on warfarin for over 6 years and only once have I needed vitamin K and it was solely because my INR was in the 6 range. I don't consider that life threatening but just something that needed to be managed. Odds of being in a situation where I need to stop bleeding STAT are slim. I mean, really, if I'm in a terrible car wreck and massively bleeding internally, vitamin K isn't going to do me a solid at that point.

So like Tom said, you just consider the pros and cons. I don't think any one drug is better than the other, just a matter of weighing risks/benefits and costs and how that fits in with your life.