i think my math is correct
NOTE::: this chart ignores a few things the three for the cleric being empower spell and the spell heal, which the cleric gets at level 7 and heals the casters max hp. (im not sure id use empower spell as a cleric because you have no freebies like edict memory gives the wizard, but i havent played one so i dont know). the third thing ignored from the cleric list is martyr which allows you to take n damage to heal n extra wounds. this could be huge, im not sure... but as its variable effect it would be hard to really use in a chart like this as the max healing would always include a + (current hp -1) to all the spells.
the one thing ignored on the bards side is the bards ability to cast all cleric spells one level under the cleric. (so at level 6 the bard could be casting cure crit wounds for pretty much the same amount as the cleric, the bard still has 1 multiclass so it could take comp healer if it wanted to.)
with these caveats noted, i think the chart shows that bards can reliably get close to the average healing of a cleric other than levels 1 and 6. i also want to note that at a lot of these levels taking this level of healing pretty much excludes most other spells from the cleric list, as taking the best healing spell will fill the entire allotment while bard always retains its full range of abilities. (also note that both classes spend the same number of moves to achieve this)
max healing by level
bard cleric(min:max:avg)
1 2 1d8(1:8:4.5)
2 6 1d8+2(3:10:6.5) cleric takes comp healer, bard takes healers tune
3 12 2d8+2(4:18:11) bard takes hospitaler cleric get cure mod wounds
4 14 2d8+2
5 16 4d8+2(6:34:20) cleric gets cure serious wounds
6 18 4d8+8(12:40:26) cleric gets saintly
7 27 4d8+13(17:45:31)bard gets saintly, cleric gets hospitaler
8 30 4d8+14(18:46:32)
9 33 4d8+15(19:47:33)
10 36 4d8+16(20:48:34)
cleric healing with heal:
7: 35+6(con)+(0 to 12)
8: 40+7(con)+(0 to 14)
9: 45+8(con)+(0 to 16)
10: 50+9(con)+(0 to 18)