We can certainly advice you on the switch. We may not give the best advice, though
Tell us again how many miles you fly a year (as opposed to earn a year) and what type of fares you book.
It may well be that you are better with Aeroplan, but are not using all the Super Elite benefits that you have.
Do you see that you can pay the lowest mile price for tickets, even if the seats are not available to regular members? This SE benefit, that it looks like you're not using, may be enough to stay.
Now, if you're doing ALOT of miles, you may want to think of earning status on 2 carriers. That's why it's important to have more info 1st.