Suho-EXO
Jin-BTS
Taeyang-BigBang
Chen-EXO
Suga-BTS
Jimin-BTS
GD-BigBang
Minhyuk-CNBLUE
Yonghwa-CNBLUE
J-Hope-BTS

Taecyeon- 2PM
Wooyoung- 2PM
Chansung- 2PM
Junho- 2PM
Jun.K- 2PM
Nichkhun- 2PM
J-hope- BTS
TOP- BigBang
L- Infinite
JunJin- Shinhwa
BamBam- Got7
Ryeowook- Super Junior
Onew- SHINee
D.O- EXO
Lay- EXO

Hm...I'll just pick the biases from groups I first started listening to, so in no particular order ;)

1. TOP from Big Bang
2. Lay from EXO (used to be Chanyeol)
3. Dongjun from ZE:A (Kwanghee intro'd me to the group though, so he's got a special place in my heart ^^)
4. Nichkhun from 2PM
5. Tablo from Epik High
6. Ryeowook from Super Junior
7. Jungshin from CNBlue
8. Seunghoon from Winner
9. Eric from Shinhwa
10. Junhyung from Beast

Lol I like to cheat.
I list my three top Exo biases and then list all of Bangtan and if you do some basic math ;) it equals ten.
Baekhyun
Chanyeol
Xiumin
Jungkook (UB)
V
Suga
Rap Mon
J-hope
Jin
Jimin

1-Byun Baekhyun (UUUUUUUUUUUB) (exo)
2-Sehun(exo)/Chen(exo)/Xiumin(exo)/Doyoung(NCT)
3-All bangtan members I can't choose (but if I had to, it would be Jungkook/Taehyung/Jimin/Yoongi/Jin/Hobi/Namjoon.... LOLOL) and also the rest of exo.
4-Hoshi (svt)
5-Mark/Bambam (got7)
6-Ken/N (vixx)
7-Taemin (shinee)
8-Minghao (svt)
9-Bobby/B.I (ikon)
10-Mingyu/DK (svt)

Some of my fave dudes are
Lay (Exo)(I love all my exo dorks really tho but I'm always a xinghoe)
T.o.p and daesung (big bang)
Jin and V and rap monster (bts) (again bts are my side hoes)
ALL OF GOT7
N AND LEO (vixx)
Zico (block b)
Jeonghan and seokmin (17)
Dean

I like a lot more but this many dudes is good 4 now

This is in no particular order. Just listing my top 10 biases.
1. Yoseob (b2st)
2. Wonho (monsta x)
3. Wonwoo (seventeen)
4. Suga (bts)
5. L.joe (teen top)
6. Zico (block b)
7. Sandeul (b1a4)
8. Ilhoon (btob)
9. Woohyun (infinite)
10. Leo (vixx)

1. Park Jimin (BTS) ❤❤ I love Bangtan, literally. XD
2. Park Sungjin (Day6) ✌ I love their voices. ❤

1. Ryeowook (SUJU)
2. Sungmin (SUJU)
3. Xiumin (EXO)
4. Sandeul (B1A4)
5. Gongchan (B1A4
6. Jooheon (Monsta x)
7. Kihyun (Monsta x)

Thatz about it really XD

1. Leo (VIXX)
2. Hongbin (VIXX)
3. Ravi (VIXX)
4. N (VIXX)
5. Ken (VIXX)
6. Hyuk (obviously, VIXX)
7. Onew (SHINee)
8. Sehun (EXO)
9. Kai (EXO)
10. Xiumin (EXO)

I've got more biases from other groups, but this is my top 10 xD
The list will be difficult to make if I could only choose one of every group... ^-^"

G-dragon, Leeteuk and Taemin omg
LIKE THEY WERE MY ULTIMATE BAE FROM DIFFERENT TIMELINES!

This is freaking hard but here is mine:
1. Youngjae (B.A.P)
2. Sehun (EXO)
3. U-Kwon (Block B)
4. Yugyeom (Got7)
5. Jungkook (BTS)
6. Ravi (VIXX)
7. Dongwoon (Beast)
8. L.Joe (Teen Top)
9. Seungri (Big Bang)
10. I.M (MonstaX) and Ilhoon (BtoB) (can't choose)
And I have so many more biasses ><

My ultimate bias is J-Hope, I don't really have any other bias besides him xD