Midgam conducted a poll of 535 people with a 4.3% margin of error for Channel 13 that was conducted and published on Dec 25 2019.

Scenario #1: With Gantz Party

Current Knesset seats in [brackets]

29 [30] Likud
16 [-–] Gantz Party
12 [13] The Joint (Arab) List
11 [24] Zionist Union
11 [11] Yesh Atid
09 [08] Bayit Yehudi
07 [06] Yahadut Hatorah/UTJ
06 [05] Yisrael Beitenu
05 [10] Kulanu
05 [07] Shas
05 [05] Meretz
04 [01] Orly Levy
00 [–] Zehut (1%)
00 [–] Green Leaf (1%)
00 [–-] Yaalon, Yachad (as other) under 3.25% threshold

61 [66] Current Right-Religious Coalition+Y.B.
59 [54] Current Center-Left-Arab Opposition+Gantz-Y.B.

Scenario #2: Zionist Union+Gantz Party

Current Knesset seats in [brackets]

31 [30] Likud
25 [24] Zionist Union + Gantz
12 [13] The Joint (Arab) List
11 [11] Yesh Atid
10 [08] Bayit Yehudi
07 [06] Yahadut Hatorah/UTJ
06 [05] Yisrael Beitenu
05 [10] Kulanu
05 [07] Shas
04 [05] Meretz
04 [01] Orly Levy
00 [–-] Zehut, Yaalon, Yachad (as other) under 3.25% threshold

64 [66] Current Right-Religious Coalition+Y.B.
56 [54] Current Center-Left-Arab Opposition+Gantz-Y.B.

Additional Question:

Do you want to see Netanyahu as the next Prime Minister?

52% No, 34% Yes, 14% Don’t know