Chem 1A/L Fall Vs. Spring, Bio 1B Fall, and Chem 3B/L summer?

<p>Note: Going to be Freshman starting fall of 2012
I heard Chem 1A/L Fall for Berkeley is ridiculous and better off taking that class on Spring... (**Thinking about IB or MCB major-102-with pre-med for both)
Also I heard that if I don't get a nice GSI = hell. Any Recommendation for good GSI? :)
Is it better to take Bio 1B Freshman Fall or is too crazy? Summer?
What I also hear is that Chem 3B/L is better during summer?
Is IB better for med school or MCB better? (I don't want my GPA to look bad...)</p>

<p>Pretty much this is my possible schedule (if taking Chem 1A/L during spring)</p>

<pre><code> Fall Spring Summer
</code></pre>

<p>Fresh Math 1A & Breath Req Math 1B & Chem 1A/L Bio 1B, Breath/ RC Req
Soph Bio 1A/L Chem 3A/L & Physics 8 Chem 3B/L
Junior Physics 8B</p>