I've had a Boss BF2-B Flanger and an ODB-3 since the mid-90s, and I still love them both. When I bought my ODB-3, I hooked up a Blue Tube, an Ibanez Tube Screamer (NOT an original 70's one, but a repro they were selling at Guitar Center), a ProCo Rat and a Russian Big Muff, and the ODB-3 gave me the sound I was looking for. (I WANTED to want one of the other ones! I didn't WANT to have an ugly-ass yellow Boss pedal on my board! But, I'll be damned if that ODB-3 didn't give me that John Deacon-esque sound that I wanted.)
Now, keep in mind, this was before the days of the $200-$300 boutique pedal. I will freely admit that I have not tried any of these (I pretty much gave up playing for a few years and am now getting back into it, and meanwhile things have changed a LOT!), so there's a good chance there's something new out there that I may like even better, and I'm planning on playing with some very soon.
Here's a little history lesson for you to keep in mind, though. When I first started playing in '88, where I lived, Boss was the ****--if you had old, analog pedals, people thought you were lame. Then, it was all about rack mountable MIDI multi effects processors--if you had pedals, you were lame. Then Nirvana and the Pumpkins broke and it was all about 70's analog pedals--if you had Boss or digital effects, you were lame. In other words, there's a certain level of "what's cool right now" that can affect people if you let it. So, the bottom line is that if it sound good to YOU, that's all that really matters.