If you want to get more hate, get Intimidation, otherwise grab Heavy Swing then Full Swing.
The accuracy is not as bad as it used to be on MRD, so it's not an extra miss, not at all. It's a hit enough of the time, more powerful than your basic hits and will also help in building TP for the WS you want to use. Likewise with Full Swing but compared to Broad Swing and has a bigger range.

Having three basic attacks to build TP and cause damage with is much better than 1, regardless of how people feel about them compared to how they used to be before AA. End of story. Get them. =P