Personally, I'd go with an Atwood 3500lb heavy duty. As Seann45 suggested, keep the original jack, if you decide to trade the trailer, you can keep the power jack. Atwood has a very good reputation for their power jacks.
2013 Starcraft Travel Star 229TB
2011 Jayco X17Z(traded in)
2010 Jayco Jay Series 1207(traded for the 17Z)
2011 Chevrolet Silverado 2500HD Z71 CC 6.0L/3.73
Reese "Pro Series" 800lb Trunnion WDH w/sway control