vBulletin 4eva .
IPB sucks , i prefer SMF than IPB .
IPB have 2 prices Standard(149$) & Bussines(299$) only for 6 months of upgrades/support. They really sucks , only stupid people buy IPB.
Well IPB has lots of Settings but they are confusing everyone...Also the "Easy Style Changes" as they call it is harder than vBulletin. You don't know what to edit...
The ACP is looking nice but vBulletin is much more Powerful. I know a site where you can get all IPB version nulled. Also there are a few styles and a few mods but vB is 1000x better then IPB.
I still enjoy IPB because I purchased a lifetime license back in the day for $185. This includes free lifetime upgrades which eliminates the need for those nasty $25 upgrade fees every 6 months. Still haven't purchased a Vbulletin license yet due to the $30 a yr they want for upgrade fees.
Vb of course... IPB cuase more load, its soo "cute flufly" and lack of mods...
Plus, vb get free support from vBTEAM
But i have to agree with Daz... there are so many more interesting, useful questions to be ask on a poll here...
As far as Price, It's simply because of greed (The LESS you sell, the Higher the price tag). As far as Security, IPB hands downs, when you actually have seen who is running IPB (Like the Blocklist site) and STAY online, You KNOW it is stable!
I prefer vBulletin myself. Invision Power Board is just a basic copy of vBulletin but a few edits, it's sort of like vBulletin lite. You can easily tell that IPB is a bit like vB. IBP is a large fail, there's hardly any support for it. vBulletin is much greater than the stupid IBP software, and cheaper!
I bet more than 80% of the people who answered this poll gave the poll-er a biased opinion, which isn't fair on either side (vB or IPB). Personally, I tried both.. and I'm sticking to IPB, it's easy to modify [When you know how to] and has a great learning design for any new staff member.