Persuader
I think your environment and body size/abilities can influence your choice. I use 00 buck and cylinder bore - Mossberg Persuader (590A), 20 inch, Ghost Ring sites, 8+1 magazine... I keep it with a bandolier filled with half 00 and half slugs in my bedroom safe. Why, I bought this when I lived in my previous house. The house was a small ranch with a small yard surrounded by woods. I felt at the time it would cover my area well, inside (00 buck) and out (00 buck or slugs for longer range). Long range was not a big issue. If I need a rifle then my deer rifle would work to really reach out. My new home has a bigger yard, two floors, and sits off the road. I am actually looking at either a Rem 870 or Win Defender with 18 inch barrel for inside the house - they seem smaller then the Persuader. Plus, having two 12 gauge pumpers seems like a good idea to me. Bought a mini-14 for the outside yard, and the 308 semi is coming next year.
I feel the 00 bucks effective range is 25 yards, and 100 yards with slugs. I am sure 00 buck can be effective out to 50 yards with a tighter choke then cylinder bore, but I was surprised at the spread with mine at 50 yards. I am sure even with cylinder bore a couple or so pellets will hit at 50 yards, but by then I would start pumping slugs into the magazine and keep moving away...