Alternative to "L" sectional - 2 sofas in mixed styles?

We have been considering a "L" shaped sectional for our new house's living/family room.

However I now like the idea of two separate sofas (positioned in an L shape), since they provide more flexibility should we move to another house (with more or less room) or want to reposition the sofas in our living room.

I had assumed that we would need to buy 2 exact sofa clones (model & leather), but I've read various threads (here & elsewhere) that apparently consider this bad interior design. If I could find two sofas/leathers that complimented each other, I guess that might be the best of both worlds - but it seem high risk/high reward.

Can anyone help me with their own opinions or experience here?

Thanks,
David

I would personally keep the two sofas the same and make them matching. The trick when doing an "L" shape lay out is to have enough space to put some gap between them. If they are too jammed together they won't look good.

Is there a guideline for how much room? I had been assuming we'd need a gap about the width of a person.

Also, with sectionals, are they literally one L-shaped piece or could one separate them into two pieces if desired?

There is not a guideline per se, however I like to see about 4' from one arm to another.

Sectionals don't work split apart, the inside joinery area is not finished enough to be exposed.