I looking at sylvanina  As well as phillips.

I don't know how true this is, but I seem to remember reading on here somewhere that Sylvania mercs use US-made arc tubes, and the lamp is assembled in China.  GE's are the only non-chinese ones I know of, being made in Hungary.

As far as MH goes, I'd probably tend toward Sylvania or US-made GE.

That's my $0.019

I think General Electric is the best!!!!

It's been my experience with using many of all 3 brands that Sylvania tends to last the longest and stay the brightest right up to it's death.  Philips would be next, followed by GE.  We've had the most problems with the GE lamps, even fluorescent.  They tend to take ballasts out more often as well, not sure exactly why though, other than possibly when they are burning out they are not "dieing" as quickly as the other two, and try to "linger" in the flickering or relight phase longer. 

For mercury lamps, I would either search out NOS lamps from Sylvania or Westinghouse, or order EYE (Iwasaki lamps). The new Philips & Sylvania look just like the Chinese no-name brands and don't seem to last long.

For metal halide, the Philips MasterColor ceramic lamps seem to be good and easier to find than the Powerballs. I prefer Sylvania for the quartz types (mostly for their shape - their lives have been adequate, but nothing remarkable).

For HPS, Sylvania seems to be best (and also a nice shape), though I've seen a number of early failures too, or get NOS Philips or GE.

Fluorescent-wise, I have been using GE until recently where I've switched to Sylvania. Pre-ALTO Philips were fine, but I won't buy any of their current lamps.

Pretty much now with any lamp, I either take my chances with cheap Chinese stuff (it's fun to watch lamps burn out) but when I need reliability, I try to get NOS lamps.

I have very good experience with Osram (Sylvania in your case) Powerballs, so if you find an affordable source, go for them.

For merc I use China made SLI (Sylvania in Europe) "Super comfort" 80W (~3400K warmer tone), it seems to be good (for the money), but I do not have comparism (it replaced ~20years old very slightly used Tesla RVLX80, what had problems sustaining arc when mains fluctuated a bit - maybe some fault at electrodes; SLI one does not have this problem and already have more hours)

I have 125W mercury (Philips HPL-N) made in 1989 and been in use every day in 1991-200x

It is working ok (and quite bright) but its brightness is somewhat fluctating all the time, there is slight flicker at times, and this changes if i turn the lamp (change burning position) when the lamp is working

Mercury lamps, if i know well, flicker most at vertical burning position. However mercury lamps have better life and improved performance in vertical position that in horizontal position.
I think that Osram powerball HCI lamps are the best. They have a very short run-up time even compared to the Venture uni-form pulse start.

Osram Powerballs are the best for MHs, reliable and cood colour control. As for mercs, I have found the chinese EU sylvania ones to be very good, even better than philips.

Thorn`s MBIF was one of the best halide lamps made at one stage, but I think GE are having them China made now!
Osrams Powerballs will take some beating now, most of the halide street lighting in the UK though is Philips`s Cosmo`s, both Sylvania`s MV and MH are good quality, a lot of the pioneering work on halide lamps, (before they were put on the market), was done in the Sylvania labs