Again we have never stayed CL at HRH so I can't help there. However, the one time we stayed at HRH we checked in and they overbooked the hotel and had no room for us. They finally came up with a room but it only had 1 king bed for the four of us. They brought up rollaways for the kids but that took quite a while. We settled in and the bathroom plumbing had some serious problems which took forever to resolve. They moved us the next day but didn't have the room ready until late in the afternoon and that room also had plumbing problems. They tried hard to resolve these issues but I felt like I spent precious vacation time trying to get them resolved and they seemed disorganized. And although these issues could happen anywhere they have never happened at RPR or PBR.
Also now HRH is no longer associated with the LoewsFirst loyalty club so a stay does not count toward achieving a higher level.
Many, many people love HRH so I wouldn't shy away from it. I am a product of the 70's so I loved the atmosphere. And the walk to Universal is so convenient. PBR is also amazing. The atmosphere is quieter and more romantic which we liked, but the kids found it boring.
All three hotels are very nice. These boards have so much great info to help you decide.