The $100M Hitting the Limit Twist and $90M Real Team I found similar for me, along with the $70M Expansion Ball somewhat. Not having a lot of time to spend on roster development, I tended to fall back on the team I grew up watching, which is the KC Royals. Having one is risky enough, but 3? God help me!
However, I did enjoy selecting the rosters for the $120M Choose Your Soup and the $140 XBH Challenge. Partly because of the higher cap, which allowed more flexibility. I too think the others would have been easier with the $300K exception.