I regularly carry an LCP and a 442. I can't say one is better than the other, but I'll try to put my thoughts on each down.
Concealment - the LCP conceals MUCH better. That may not matter to you, but I need to be well presented for work and modern styling is moving towards more fitted clothing. If I slip a j-frame in my pocket to hit up a store on the way home from work it looks like a bulging tumor on my thigh. In the looser fitting jeans I wore a decade ago, it didn't matter as much.
Recoil - Many people find the LCP snappy, I do not. I actually find my 442 much more snappy to shoot, especially with +p ammo. I find both relatively pleasant to shoot at the range, though the j-frame can start to sting a little after too many cylinders of +p.
Reliability - I'll give the edge to the j-frame. My first LCP had a couple hiccups in the first 100 round break-in period, but was flawless after that until it hit about 1,200 rounds when it locked up and I had to send it to Ruger. They replaced a 9 year old gun for free, and the new one hasn't had an issue for the 300 or so rounds I've put through it so far. I trust my LCP, but IMO it isn't a gun that holds up to high volume shooting. Or even moderate volume shooting. Just keep an eye on your gun, I could tell me LCP was feeling pretty sloppy and figured it was due to be replaced, and it finally made that decision for me in a range session.
Accuracy - The j-frame has the potential for better accuracy. But ONLY if you regularly practice with it, as the DAO trigger, while smooth, is high and it's tough to shoot a light gun with boot grips and a high trigger pull accurately. If you aren't going to practice dry-firing and take this to the range often, go with the LCP as it's trigger pull is lower and easier to manipulate. Now my first LCP had HORRIBLE accuracy. I was barely better than minute of pie-plate at 7 yards. My new LCP is pretty good though, I get one ragged hole at 5 yards and about 2.5" groups at 10 yards offhand which is more than adequate IMO. I barely shot a buddy's Kahr P380 better than that, and the Kahr has much better sights.
All things considered, I prefer to carry my 442, but do to the way I dress I end up carrying my LCP more often.