[Bubbles]

If I had it to do over again, Bubbles would be a halfling no doubt.

They are just dang cuter, really.

From a min / max perspective, you need to look at the combined 4 main attributes of relevance to a cleric: (STR / STA / AGI / WIS)

STR - it's just.. amazingly necessary with all the plate you'll be wearing. You can go around with low STR if you never want to loot anything.. ever.
STA - HPs are good, 'nuff said.
AGI - helps with dodge and avoidance a touch. <75 = annoying AC penalty
WIS - mana. yep.

DE - 65 / 70 / 90 / 93 - Total 318
ERU - 65 / 75 / 70 / 93 - Total 303
GNM - 65 / 75 / 85 / 77 - Total 302
HUM - 80 / 80 / 75 / 85 - Total 320
HLF - 75 / 80 / 95 / 90 - Total 340
HIE - 60 / 70 / 85 / 105 - Total 320
DRF - 95 / 95/ 70 / 93 - Total 353

Clearly Dwarf and halfling are heads above the competition. In this comparison.

If we want to remove AGI from the equation:

DE - Total 228
ERU - Total 233
GNM - Total 217
HUM - Total 245
HLF - Total 245
HIE - Total 235
DRF - Total 283

Dwarf is now an even clearer winner, although keep in mind a dwarf starts at 70 AGI and needs 5 to avoid an AC penalty.

Probably the one biggest boost to High Elves is they will have far, far closer to 200 WIS in full resist gear if you are interested in raiding.

But for situational every day grinding, dwarves and halflings are going to have the most utility.