Best hard drives for backing up macbook pro?

Question

What is the best harddrive for backing up my macbook pro?

Answer 1

ALL HD WILL FAIL, so asking about A (single , one) HD is always the wrong question, its redundancy and more redundancy.
huge storage, low cost, high quality, very small and portable.
BEST FOR THE COST, Toshiba "tiny giant" 15mm thick  2TB drive (have several of them, lots of storage in tiny package)    $100
http://www.amazon.com/Toshiba-Canvio-Connect-Portable-HDTC720XK3C1/dp/B00CGUMS48    /ref=sr_1_3?ie=UTF8&qid=1390020791&sr=8-3&keywords=toshiba+2tb
best options for the price, and high quality HD:
Quality 1TB drives are $50 per TB on 3.5" or  $65 per TB on 2.5"
Perfect 1TB for $68
http://www.amazon.com/Toshiba-Canvio-Portable-Hard-Drive/dp/B005J7YA3W/ref=sr_1_ 1?ie=UTF8&qid=1379452568&sr=8-1&keywords=1tb+toshiba
Nice 500gig for $50. ultraslim perfect for use with a notebook
http://www.amazon.com/Toshiba-Canvio-Portable-External-Drive/dp/B009F1CXI2/ref=s    r_1_1?s=electronics&ie=UTF8&qid=1377642728&sr=1-1&keywords=toshiba+slim+500gb
*This one is the BEST portable  external HD available that money can buy:
HGST Touro Mobile 1TB USB 3.0 External Hard Drive $88
http://www.amazon.com/HGST-Mobile-Portable-External-0S03559/dp/B009GE6JI8/ref=sr    _1_1?ie=UTF8&qid=1383238934&sr=8-1&keywords=HGST+Touro+Mobile+Pro+1TB+USB+3.0+7 2 00+RPM
Most storage experts agree on the Hitachi 2.5"
Hitachi is the winner in hard drive reliability survey:
Hitachi manufacturers the safest and most reliable hard drives, according to the Storelab study. Of the hundreds of Hitachi hard drives received, not a single one had failed due to manufacturing or design errors. Adding the highest average lifespans and the best relationship between failures and market share, Hitachi can be regarded as the winner.
Methodology to protect your data. Backups vs. Archives. Long-term data protection
Hard drives aren't prone to failure…hard drives are guaranteed to fail (the very same is true of SSD). Hard drives dont die when aged, hard drives die at any age, and peak in death when young and slowly increase in risk as they age.
Never practice at any time for any reason the false premise and unreal sense of security in thinking your data is safe on any single external hard drive. This is never the case and has proven to be the single most common horrible tragedy of data loss that exists.
Many hundreds of millions of hours of work and data are lost each year due to this single common false security. This is an unnatural disaster that can be avoided by making all data redundant and then redundant again. If you let a $60 additional redundant hard drive and 3 hours of copying stand between you and years of work, then you've made a fundamental mistake countless thousands of people each year have come to regret.
Countless people think they're safe and doing well having a single external backup of their vital data they worked months, years, and sometimes decades on. Nothing could be further from the truth. Never let yourself be in situation of having a single external copy of your precious data at any time.