If I were going for a pure 33 polearm user, the build I would use is:
21 Strength
24 Agility
60 Hit points
14 skills converted
2 Ironflesh
7 Powerstrike
8 Athletics
3 WM
137ish polearm
Or maybe even shoot for 5 ironflesh, or 2 ironflesh 3 shield for utility. I don't notice much different between 111 prof and 150 in a single weapon-type build, though having more proficiency would allow one to wear heavier armor and suffer the reduction to prof from it. With polearms in particular I'd favor more Athletics more than Power Strike, though a build with this many conversions allows for a high number in both.
Out of the two you posted, I'd go with the 21/21 one with just 5 WM and 7 IF.
It's important for polearmers to move fast. Don't want to give any examples. I vote for 21/21
I would go 18/24 anyway :D
you will easily reach 33, i would plan for 35(doable over sure a longer time)
and go for a 21/24 buildLevel 35 (142 278 448 xp)
Strength: 21
Agility: 24
Skills to attributes: 10
Ironflesh: 4
Power Strike: 7
Athletics: 8
Weapon Master: 7
Polearm: 170
that way you have good ath and will be rarely outspamed
EDIT: i go for 36, will be at 35 in 2-4 months from now and then it takes at least another year i guess even more to get to 36 ^^
Since I played a long time 21/21 at lvl 29, 30 and I finaly understood that athletics have much more importance than maneuverability of weapon,
I can now start my final build 24/21 as medium armored heavy polearm, without WM!
Level 32 (17 784 806 xp)
Strength: 24
Agility: 21
Hit points: 63
Skills to attributes: 16
Ironflesh: 2
Power Strike: 8
Athletics: 7
Weapon Master: 0
Polearm: 118
Level 33 (35 569 612 xp)
Strength: 24
Agility: 21
Hit points: 69
Attributes to skills: 1
Skills to attributes: 16
Ironflesh: 5
Power Strike: 8
Athletics: 7
Polearm: 120
With :
Armor : 45h 52b 33l
Weight armor : 17,2 kg (2,4+13,5+0,5+0,8)
Total weight : 20,9 kg
Weapon : My lovely Mighty Long Bardiche (3,7 kg, spr 90 and 48c visitors can't see pics , please register or login
)