I wouldn't hesitate to trade either or both of them to get rid of the contract, but if I'm forced to gamble on 1 of them, I'd keep Pulkkinen.
I think he has more potential upside, even if he's less likely to reach it.
On the flipside I think Jurco is the safer choice because even if he doesn't ever figure things out offensively, he's still big enough to play further down the line-up. Pulkkinen is completely useless if he can't crack a scoring line.
Ultimately I'd let whoever the trading parter is, choice which one they prefer and I'd happily make the deal