I know that this is an old post and the original poster has probably moved on, but I will say this for anyone elses' benefit who maybe looking for the same answer. I would stay away from the H330 as it has a considerably smaller queue depth (256) vs the H710's 895.
I guess this also depends on the drives underneath and their associated queue depths;
SATA 32
NL SAS 128
SAS 254
The queue depth of your controller can be found in ESXTOP.
Two controllers and multiple VSAN disk groups would see a performance gain, as well as creating smaller failure domains. I have found that the H730 combined with a eMLC SSD cache, and SAS drives a good combination, specifically with the R730xd.
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