You want 2700K if you prefer how regular incandescent bulbs look. 3000K for a more modern look. 5000K if you prefer the harsh cold white of Walmart. Other important features to check for with cheap LED bulbs (this is a general list, not specific to the bulbs on this deal): 0-100% dimmability, a linear or near-linear dimming curve, no RFI/EMI interference (the AC/DC switching in some bulbs is super ghetto), matching white points (best to buy them in batches if they really need to match), lifespan of 20k-50k hours minimum.
It seems like the industry is moving fast to fix all these issues and LEDs are already almost always a better option than incandescents and CFLs.
