No vote, I hardly play them anymore. 

I'm on the same page as Cristi here; I think I could only hear these once a year (or twice!), but no more.

I will, however, dare to cast the first vote for 'Purple Haze'.

wow, really?! 

these are very famous songs. I'm surprised you only know two of them. Which ones do you know? 

Hotel California I’ve heard many times, as it was often played on the radio station my dad listened to.

I knew the main riff from Smoke on the Water because it was used in an ad for the local racecourse. But I’d never heard any more than that riff, or any Deep Purple music at all (that I’m aware of), until a few years back, when someone told me I really ought to give them a listen. In fact, I can pretty much date when I listened to them, because I added them to my Amazon wish list, as I liked them enough to think about buying them. I’ve not listened to any Deep Purple since, but I added them to my wishlist on 24 November 2016.

I’ve never heard anything but the opening riff from Stairway, as played in Wayne’s World.

Purple Haze is, I believe the “touch the sky” song, that people hear as “‘kiss this guy”, but I don’t believe I’ve ever heard it. Yeah, I know, I suck. I know a few Hendrix songs, but I don’t believe this is one of them.

Free Bird is the song people call out to hear in concerts, but to the best of my knowledge I’ve never heard it either. As far as I know, the only Lynyrd Skynyrd song I’ve heard is Sweet Home Alabama (which was played on the same radio station as Hotel California).

Probably Deep Purple - Smoke on the Water, with The Eagles Hotel California pulling a close second.

Never really liked Stairway to Heaven all that much or that particular Lynard Skynyrd tune.

Hendrix is always a classic, but he has better songs.

I know all of these songs, and surprisingly, I voted for the Eagles, even though it's the least psychedelic or progressive of all five songs. 

All overplayed by just about every radio station since the dawn of time. That said, they're all very good songs* that have stood the test of time and tide of fashion and passing trends etc. Of the five, Purple Haze (with its angular and dissonant tritone opening riff) is maybe the most daring and original for its time (1967) followed by Stairway to Heaven which created a template, much imitated since, for every subsequent Rock band's 'epic number' that starts slow and gentle then gets uber heavy (maaan) to reach a showstopping climax etc

*Freebird has a very beautiful opening sung section but degenerates thereafter into good 'ol boys threadbare plank spanking cliche w.a.n.k.e.r.y non pareil. There's not a single original lick throughout that wasn't lifted verbatim from someone like T-Bone Walker from as long ago as the 1940s.

Yeah, a vicious poll... It's like asking: "Which one of your five kids do you want to keep?"

So, I vote Stairway to California (well, will give it to The Eagles, since they're lagging behind a bit)

Given the longer and crescendoing nature of the last three choices, the first two seem a bit out of place.

Might've been better to include something like Styx's Come Sail Away and another in that style - starting slowing and have an epic ending - like Child In Time.

I went for Freebird, cos it needed it.

 I presume it is more down to fame than structure. I’ve heard of every song in this poll (even if I’ve never heard all of them). I’ve never heard of Come Sail Away, and would suggest it comes nowhere to close as being as famous as the five here. 🤷🏻‍♂️

Had it been performed by some obscure prog/rock group not from the US, it would be lauded as a masterpiece...both the studio and live versions.

What's funny is that the Germans were all over Lynyrd Skynyard in that 1974 time period.  That song was played where ever you went.

2- Hotel California

3- Free Bird

4- Smoke on the Water

5- Purple Haze