I like the second one. AP+Rudolf for Jackson
Reason being Gronk, while still a huge beast is coming off the ankle injury from last season, he's a primary target for defenses, and there is so much depth now with Welker, Lloyd, Hernandez (now under contract for 5 years). His numbers wont be the same, Megatron has way, way more potential.
As for the second trade. Jackson, while still good, can be beat by Adrian Peterson when AP's healthy which he looks like. As well Rudolf is a young quick TE that will be starting, with Christain Ponder only in his second year as a starter he will be looking to Rudolf.
Upside feels like AP+Rudolf for Jackson hope this helped. Let me know what you think of my draft?viewtopic.php?f=44&t=516502