I have life and Mimi and last week I would have voted for life. I still say life over bloom and fresh simply for strength. But I rediscovered Mimi and wowzers!!!! Btw Mimi 1 and 2 are not that different. Granted they gave the patterns control it's own button so you can have different strengths for different patterns, but as a girl who uses her toys on high straight vibrations - both versions are the same strength and the buttons are even a little easier to push and the old one is cheaper!
If you just want a great clit toy though I would say JJ form2 or We-Vibe tango/salsa
I voted mimi since that's what I like and use more often. If you know you want a leaf I would suggest life. I would say mimi and leaf are comparable strength wise. Life is a little bit stronge, but mimi is rumblier. Life is more pinpoint, mimi can be pinpoint if sideways or broad if using the flat side. Mimi's buttons are hard to push, but life's button is too easy and I accidently turn if off too often. I have yet to find the perfect clit vibe, but mimi is the one I use the most and wevibe tango is a close second. Those are the 2 I think you should look at.
Bloom isn't quite like the other 3, since it's a G-spot or regular slim vibe (double ended, whoo!). Of the clit vibes, the Mimi is the strongest, but it's broad vibrations. If you need pinpoint, the Life will probably do you good.