Tight ends. Assuming 0.5 PPR, 12 TE starters, and about 250 position players rostered. Age as of 9/1/16. Prev from 
8/26/15.
Tr    Rk    Player    Team    Age    Prev
1    1    Rob Gronkowski    NE    27.3    (1)
2    2    Jordan Reed    WAS    26.2    (12)
2    3    Travis Kelce    KC    26.9    (3)
2    4    Tyler Eifert    CIN    26.0    (4)
2    5    Zach Ertz    PHI    25.8    (5)
3    6    Greg Olsen    CAR    31.5    (7)
3    7    Jimmy Graham    SEA    29.8    (2)
3    8    Eric Ebron    DET    23.4    (6)
3    9    Austin Seferian-Jenkins    TB    23.9    (15)
4    10    Gary Barnidge    CLE    30.9    unr
4    11    Delanie Walker    TEN    32.1    (22)
4    12    Julius Thomas    JAX    28.2    (9)
4    13    Martellus Bennett    CHI    29.5    (10)
5    14    Ladarius Green    SD    26.3    (11)
5    15    Richard Rodgers    GB    24.6    (21)
5    16    Coby Fleener    IND    27.9    (14)
5    17    Maxx Williams    BAL    22.4    (18)
5    18    Jordan Cameron    MIA    28.1    (8)
5    19    Dwayne Allen    IND    26.5    (13)
5    20    Charles Clay    BUF    27.5    (17)
5    21    Will Tye    NYG    24.8    unr
5    22    Kyle Rudolph    MIN    26.8    (19)
5    23    Jace Amaro    NYJ    24.2    (16)
5    24    Antonio Gates    SD    36.2    (23)
6    25    Ben Watson    NO    35.7    unr
6    26    MyCole Pruitt    MIN    24.4    (29)
6    27    Gavin Escobar    DAL    25.6    (27)
6    28    Clive Walford    OAK    24.9    (28)
6    29    Jason Witten    DAL    34.3    (24)
6    30    Heath Miller    PIT    33.9    (30)
6    31    Dennis Pitta    BAL    31.2    (33)
6    32    Zach Miller    CHI    31.9    unr
7    33    Vance McDonald    SF    26.2    (48)
7    34    Crockett Gilmore    BAL    24.8    unr
7    35    Jacob Tamme    ATL    32.5    (37)
7    36    Josh Hill    NO    26.3    (20)
7    37    Jared Cook    STL    29.4    (35)
7    38    Owen Daniels    DEN    33.8    (26)
7    39    Niles Paul    WAS    27.1    (39)
7    40    Jeff Heuerman    DEN    23.8    (45)
7    41    Vernon Davis    DEN    32.6    (32)
7    42    Mychal Rivera    OAK    26.0    (40)
7    43    Derek Carrier    WAS    26.1    (36)
8    44    Ryan Griffin    HOU    26.6    unr
8    45    Luke Willson    SEA    26.6    (44)
8    46    Troy Niklas    ARI    24.0    (41)
8    47    Demetrius Harris    KC    25.1    (43)
8    48    Virgil Green    DEN    28.1    (31)
8    49    Tyler Kroft    CIN    23.9    (46)
8    50    Scott Chandler    NE    31.2    (51)
8    51    C.J. Fiedorowicz    HOU    24.9    (34)
8    52    Larry Donnell    NYG    27.8    (25)
Gronk is Gronk.
Next tier is a bunch of young TEs who have already had a starting TE season. Reed has flashed the most value, but injury risk keeps him close to the rest of the group. Eifert vs. Kelce is a tossup. Eifert was a better prospect and scored more fpts this year, but he was heavily TD dependent. Kelce's 2014 was the best season of either of them in terms of per-snap production, but his 2015 totals were almost the same despite a large increase in snaps and some improvement to his team's passing offense (he actually might have been hurt by that improvement, as Alex Smith learned to pass to WRs). People who are predicting a 2016 breakout for Ertz didn't pay close enough attention to 2015, when he finished the year 7th among TEs in receiving yards. Still, Ertz is a half-tier back on the rest of these guys because I think he has somewhat less promising upside (especially with Kelly gone).
In tier 3, Olsen is the proven vet, Graham is the vet with more upside but more risk, and Ebron & ASJ are the most promising young prospects who aren't there yet. ASJ missed a bunch of time this year, but he was TE8 in ppg and 2nd in yards per snap.
Tier 4 has the vets who are less proven or who have less upside. These guys could move around a bit as we get a better sense of their redraft value for 2016.
Tier 5 has a mix of young guys who are less promising, and mid-career guys who have disappointed recently. Upside factors into the order pretty heavily, including the upside of potentially playing with Aaron Rodgers or Andrew Luck.