Technically I took both of these classes...
From my experience cell biology was a general introduction to everything "here's the central dogma, here's the central metabolic pathway, these are the chromosomes and there are the alleles, oh yes... that's how small that organelle is and that's how large that one is..., no that is anaphase not metaphase, also don't forget the differences between eukaryotes and prokaryotes..."
While the course I took in molecular biology dove deep into central dogma. It covered much more detail into what is transcription, translation, DNA polymerases and its substituents, all the major players in RNA polymerase, codons, energy required to produce polypeptides, details about DNA repair, how viruses integrate into hosts....
If you already did well on the bio section of the DAT then I think you would probably appreciate the finer details molecular biology has to offer. Depends on how detailed this cell bio class of yours will be, if it's rather superficial than you might find it boring... an easy A isn't bad either though haha...
I vote molecular bio
(my real vote is for anatomy if you haven't taken it ;P)
Most people won't get it lol
