Might help to know which model you are putting it in. I am new to RoadGlides myself, so I really don't know what year the factory started installing LED lighting. I can tell you from experience on a Softail - the Rivco bulbs are a serious upgrade and not too bad on the price. I purchased the passing lamp and head lamp LED upgrades for the FLSTN last October. Total cost was under $200 for all three bulbs and worth every penny. The same upgrade in Haymakers would have run close to $1K and the Hogwerks, Sun, etc. were all less than the H-D but at least double the Rivco. That said, I never tried any other brand, I am merely comparing the Rivco (bulb exchange only) upgrade to the stock Halogens and it is literally night and day.
On that same bike, I went to AutoZone and picked up LED 1157 bulbs for my tail - another improvement but my new bike has Custom Dynamics all around (except the headlights) and I while the C-D is much more expensive ($79 vs. $11) they are much brighter and the ability to add Halo to the front is a nice upgrade too - I recommend Custom-Dynamics on the blinkers.