So it will be a 5 tier wedding cake, with two of the tiers being cheesecake, three of the tiers being regualr cake, all iced with buttercream. Here is the sequence.
6- cake
8-cake
10-cheesecake
12-cake
14- cheesecake

With regular cake construction (dowels and cardboard rounds), will the cheesecake hold up (no smooshing tiers)? I am especially concerned with the bottom tier holding all of the weight. We are still in the planning stage, so we can re-work if needed. Just wanted to get some wisdom, if anyone has ever done something like this, and how it went. Thanks!

I've seen it done, however, they used the hidden pillar and plate system as this is strong enough to support each tier without any risk of squishing down the line.

Hope it all works out for you!