I wouldn't say one is better than the other.
girnyau forked from dtbatle to add some additional freq and a per miner freq option (which is nice).
Since then dtbartle has taken out the hard coded freq and added stepping in increments of 25 and other stuff. Would be nice if he changed it to increments of 5.
Took a quick look at the code but it didn't look obvious to me how to do that.
// Support frequency increments of 25.
pll_f = info->freq / GRIDSEED_F_IN - 1;
pll_f = MAX(0, MIN(127, pll_f));
If I could figure out stepping in increments of 5 I would fork dtbartle combining the per miner option of girnyau.