bounties are so much more rewarding that rifts lately. i don't really enjoy rifts unless it's just absolute batshit mobs wall to wall.. the loot is slower, the time spent is longer, and they're less fun, imo.
I disagree unless you are split farming for caches in Normal with 4 players. I feel like that would be nerfed.
The advantages of Rifts are the following:
*On average more Elites to kill per hour spent.
*Considerably more Blood Shards awarded which leads to easier ways to upgrade your items if you have Rares.
*Much better chance of acquiring Forgotten Souls (Rift Guardian has a good chance to drop).
*More challenging than Bounties and usually more fun too. When you get a high density Rift it's pretty amazing.
Disadvantages of Rifts:
*Can't get Cache exclusive Legendaries.
*Less loot than Bounties if you are split farming Bounties or just joining people as they complete (will likely get nerfed).
*Restriction to Rifts, requires keystone which isn't a big deal as many people have more than enough at this point.
*Probably less EXP but it's hard to say for sure.
I feel it's well balanced. If you want good loot then you can just do Rumsfeld runs on Story mode or Core of Arreat. Hell those Act V areas have a crap tone of weapon/armor racks you can open up. The advantage of Bounties/Rifts is that you get good EXP, there is lack of monotony, you get currencies and solid enough loot for time spent.
Honestly just do whatever you want, that's the beauty of RoS. I will keep doing Rifts because I am a gambler and love using Forgotten Souls to reroll Legendaries. I also love using Shards and have gotten many upgrades from the gambler. For me personally Rifts have been more rewarding. I have done many Bounties but for me it hasn't provided good enough returns.