La Sagrada Familia
Huge single room interior/common space for anyone who wants
religious
Weird blocky statues
Public
Huge on both the outside and inside.
Not finished yet – 145 years and still going
Built from scratch
Casa Batllò
Multiple rooms
Residential
Multi-floored
Private
Completed by Gaudi in his lifetime
Big in on the outside, Smallish rooms on the inside, but lots of them.
Similarities
Weird colors/patterns
Tall Interior and exterior
Built to hold a lot of people
Stained/colored glass/window panes
Both Standout(next to other building or surrounding area)
Intricate details
lots of mosaics inspired by organic and natural shapes, not normal rectangles
My opinion
Overall I prefer the Gaudi house over the church because the house is more functional than the church. In addition the house is functional and still so unique. While the church serves only one function, religion.