I started with Disc & Music Echo in 1970. It had the benefit of being the only weekly with a front cover in colour.
I switched to Melody Maker around 1972. My musical interests were becoming 'weightier' and so I needed the gravitas (bordering on pomposity) of the MM.
However the NME became the paper with all the interesting stuff and I switched to it around 1973. I stayed with it until around 1985 / 86.
I started buying The Face when it begain in 1980. When it started it wasn't the 'style bible' it evolved into. I recall the 1st issue carried the strap 'Rock's Final Frontier' and a picture of Jerry Dammers. I stayed with The Face until issue 100 by which time music had became of little importance to it. I managed to flog those 100 issues and my collection of Q's for £150.
I bougho Q from issue 1 and stayed with it for about 10 years.
It bought both Q and Mojo for a time. I started with issue 1 of Mojo (early 1990's?) and again lasted about 10 years. I also bought quite a few issues of Vox.
I got fed up with Mojo and it's interminable lists, the constant rotation of Beatles / Dylan / Floyd / Stones on the cover (one of the first covers was k d lang - could they ever be as adventurous again). I had a subscription and I probably let it run at least a year, if not two, longer than I should have.
I started buying Uncut when it started in the late 1990's. I stuck with it until 2009. I'm not sure why I lasted so long; habit probably because I can't ever recall reading an article I thought deserved re-reading. I think it was just a half decent general music magazine that had (for a time) a decent books and film section as well.
I discovered the American bi-monthly No Depression at the end of the 1990's and stuck with it until it folded last year. I subscribe to the on-line edition now, which is OK. I can't complain as it's free.
Word enabled me to dispose of the now tedious Mojo.
Now Word is the only magazine I buy. It's on subscription and I'm still happy enough with it to renew the subscription in the next month or so.
On the non musical side I bought When Saturday Comes from its first issue in 1986 and again lasted about 10 years.

for a long while but like you I went for Q when it came out. Early doors and under Danny Eccleston, it was excellent but it all got a bit stale after that. I also tried Mojo, which quickly became tedious, and Uncut, which I still occasionally buy, but I have to say it's The Word that does it for me.

... and also Sounds in '77 or '78 before it became NWOBHM. Around that time the NME & Sounds combined cost less than 50p. I would go into WH Smiths every Wednesday morning on the way to work and slip a copy of Sounds inside the NME and give the cashier a 50p piece and nonchalantly look away as she gave me my change. That way if I got caught (but I never did) I could simply blame the cashier for giving me too much change. I used to love the big NME double Christmas edition.

I bought Vox for a year or two when that first came out. Bought the occasional copy of The Face. I was a 'late adopter' when it came to Q but enjoyed that until Mojo came out, which then replaced Q as magazine of choice. When Mojo took a dip in quality I tried Uncut on and off for a few months.

A friend of mine in the UK alerted me to Word and kindly sent me the first copy as it was unavailable here in the US at the time. I called up to enquire about a subscription and have been 'here' ever since.

1982 - 1988: Ver Hits
1987 - 2002: Q (Q100 remains a classic)
1988 - 1999: NME
1989 - 2002: Empire (on & off ever since)
1989 - 1993: Melody Maker (a mate's copy)
1990 - 2000: Select
2003 - now: (The) Word (every issue)
2007 - 2008: Mojo (tempted by a generous Beatles subscriber offer)

NME - outgrew it
Q - left when it became the Sun's music section equivalent
Mojo - still there truth be told
Word - only discovered recently when I saw the John Martyn memorial cover.

except for the obession with Americana. It's always bugged me that they have a dedicated Americana page in the reviews section.