My daughter's school just purchased Aleks last week based on my recommendation. The kids are supposed to start today:-)
I am not familiar with Accelerated Math, but know for sure that Aleks does not use multiple choice format. Student has to calculate answers in his/her head or on paper and then type them in.
You can try Aleks for free x 48 hours. Go to www.aleks.com.
EPGY sounds great, a little pricey though.
Ania