Here's the fangraphs write-ups on both Urena and Torres from pre-season 2016. Obviously this is only one opinion, but if you check around to other sites, you'll find they are pretty similar.
Urena:
Urena is all over the place when it comes to future projection. He could be a plus-fielding shortstop who hits for power, or he could be an average-ish defender who doesn’t hit enough to be more than a bench player. Some are concerned about his ability to stick at his position, but I think he ends up an above-average contributor overall on defense, regardless of where he ends up. I like elements of his swing from both sides of the plate, as well, but his approach is pretty abysmal, and I’m not sure he has the pitch recognition to tap into his above-average raw power.
His power is more a product of a pretty good swing path than raw strength. That usually bodes well for squaring more balls up because of time spent in line with pitch flight, but he seems to struggle with making adjustments mid-swing. He is also extremely aggressive to a fault, to the point that his 15 home runs last season actually exceeded his walk total (13). If his power were more guaranteed, he might be able to get away with that kind of approach, but as is, he needs to make an adjustment to profile as a lineup regular.
Blue Jays sources are big fans of his future development, and though I list a bunch of reasons why he’s a bit shaky, it’s important to recognize he’s only 20 years old. I remain more confident in his defense reaching the average-to-above plateau than his offense, but the potential is there for five average tools if his plate discipline improves.
Hit: 30/45/50 Power: 35/45+/50-55 Run: 50/50/50 Field: 50/55/55+ Throw: 60/60/60
Overall: 30/45/55-60
Torres: Torres has a great all-around profile, with all but his power projecting to be at least average. Defensively he doesn’t have prototypical shortstop range, but controls his body extremely well with excellent footwork. If he loses a step as he matures, he would be a great fit at second or third, as well, but I like him at short. He has plus arm strength with the ability to get rid of the ball quickly. His average speed could fade, but he has the instincts to create opportunities on the bases regardless.
In the box, Torres has a line drive swing with a lot of athletic moves. He makes plenty of hard contact, though his strength and level swing plane hint at a power ceiling around average. His batting practice swings show some better lift, but reaching it against live pitching would likely require some conscious effort to enact, made unnecessary by his raw ability to hit.
He has excellent balance and a strong lower half, with smooth hands and a selective approach in game. There is work to do on pitch recognition, but that is likely to come with more repetitions rather than being an innate problem. Torres looks to me like an elite major league hitter who will have situational power, making pitchers pay for mistakes left up in the zone.
Hit: 40/60/70 Power: 25/40/50 Run: 50/50/55 Field: 55/55/60 Throw: 55/60/60
Overall (Current, Likely Future, Ceiling): 35/60/70