我服了。。贾老板和丁日完全没有关系啊，两个时代的艺人了，拿丁日跟贾老板比就相当于你拿张艺兴跟周杰伦比（只是举个例子，勿杠）而且丁日一直是贾老板的粉丝，还跑去看过贾老板的演唱会，有意义么？
不过你非要比的话
1.销量
专辑实销
因为丁日新专最终销量没出，所以均刨除二人最后一张专辑
贾婷婷超级男孩时期
首专NSYNC（1997年）实销1249万（美国钻石认证）
节日专辑Home For Christmas（1998年）实销330万
二专No Strings Attached（2000年）实销1530万（美国钻石认证，b榜00s十年冠）
三专Celebrity（2001年）实销684万
总计3793万
个人时期
首专Justified（2002年）实销855万
二专Futuresex/lovesounds（2006年）实销934万
三专The 20/20 Experience Compelet Experience（2013年）实销548.5万
总计2337.5万
贾老板+超级男孩总计：6130.5万
丁日
首专My Worlds（ep发行于2009年，2.0发行于2010年）实销927万
节日专辑Under The Mistletoe（2011年）实销275万
二专Believe（2012年）实销318万
三专Purpose（2015年）实销461万
总计1981万
（不过专辑销量高低存在唱片市场影响，超级男孩的销量赶上了美国唱片市场黄金期的末班车，所以销量比较逆天也很正常。但贾老板单飞后基本上正好错过了美国唱片市场的黄金时期）
注意！此处有必要说明一下，我为什么不用灌水销量进行比较。
灌水销量（灌水cspc公式：专辑销量+实体单曲销量/3+数字单曲销量/6.667+音频播放量/1500+视频播放量/11750）
数字下载大约于2004年出现，流媒于2010年出现，所以贾老板首专以及超级男孩全部专辑均未赶上数字下载时代，超级男孩时期全部专辑、贾老板首专及二专均未赶上流媒时代，比伯作为09年出道的艺人，流媒和数字下载成绩占优非常正常。不过数字下载的出现挤掉了实体市场，新生代实体销量较差也很正常。但根据cspc算法，如果歌手流媒成绩占优，灌水销量会比实体占优的歌手强（比如“世界上销量最高的专辑”迈克尔杰克逊的《thriller》折算后的单曲实体销量为522.9万。而丁日随随便便一张《purpose》流媒折算后的销量为832.9万）所以明显比灌水销量对于老/中生代歌手是不公平的，而且灌水销量本身就是折算出来的销量，说服力不及实销。
2.单曲销量
数字下载/实体
Chartmaster上给出的贾老板单曲数字下载为1.02亿（中生代solo歌手第三）丁日1.1亿（新生代懒得数了，但肯定前五开外）
上文解释过了，贾老板早期数字下载并未兴起（这就是为什么中生代第三比不过新生代前五开外），单曲销售方式以实体销售为主。由于实体和数字下载含金量不同，一张数字单曲为1.29$，而一张实体单曲要将近10$，所以一张实体单曲的价钱≈8张数字单曲的价钱。如果将二人的销量全部换算为数字下载的话...比伯54万实体相当于432万数字下载；贾老板530万实体相当于4240万数字下载。超级男孩时期还有698万的实体，换算后相当于5584万数字下载。
所以换算后的贾老板个人单曲总销量约为为1.44亿，加上超级男孩约为2.0亿。丁日单曲总销量为1.14亿
3.巡演
贾老板一巡票房未公布，暂且不算。联合巡演也不计算在内
为排除掉通货膨胀影响，均以维基百科上给出的2019美金价值进行计算。
贾老板三轮巡演总票房为614.25m，总场次为370场，场均1.660m
丁日三轮巡演总票房为559.13m，总场次445场，场均1.256m
4.受欢迎度
Yougov上贾老板的positive是56%，negative14%，第15 most popular pop music artist
丁日positive25%，negative50%，第157 most popular pop music artist
5.实力
唱功
贾老板录音室音域F#2-B5
丁日录音室音域C#3-E5（包括未变声前，变声后最高音应该变到了Eb5）
丁日音域比贾老板窄了14个音节
唱功评级（原视频油管上也有，我个人感觉这个榜还是比较准确的）
https://b23.tv/zlYBxs舞蹈
先不多说，直接放视频
丁日
https://b23.tv/wtlHX2贾老板
https://b23.tv/B9mh9O贾老板在油管上也有最佳舞蹈盘点，但未包括超级男孩，所以就放了b站上的这个视频（超级男孩在p2）
emm丁日的舞蹈风格似乎有点像…贾老板老年disco时期的filthy（轻喷
很明显超级男孩的舞蹈（虽然有一些已经过时，不过毕竟年代久远，可以理解）对动作幅度和力量要求非常高（注意！超级男孩的现场都是全开麦）和当年的布兰妮、后街男孩一样，属于很典型的teen pop舞蹈，基本上可以说是现在韩团的鼻祖…
贾老板单飞后早期舞蹈则对力量、幅度要求较小，但对协调性、灵活性和节奏感要求非常高，所以他早期跳舞总给人一种非常“smooth”的感觉，甚至有一丝迈克尔杰克逊的味道
丁日的舞蹈和二者相比之下要简单很多
贾老板后期跳不了大幅度舞蹈，身体的灵活性也有所减弱（腰基本上不能动了。。）所以下肢动作简化了很多，但由于舞蹈基础很好，本身协调性节奏感就强，所以观赏性还是很高的。不会出现像布兰妮那种年轻时候跳舞超级好看，老了之后上台手语操的情况
丁日舞蹈花里胡哨的东西比较多，舞台效果很不错，但真正的舞蹈实力是绝对比不上贾老板的（这点毋庸置疑）
创作才华/艺术造诣
Cry Me A River是贾老板“分手之后用两个小时写出来的”，入选滚石500大。。不用多说了吧？
外网搬运（今年五月份的文）基本上也是我想说的
Justin Timberlake’s music is objetvely more popular than Bieber’s music. The reason that Bieber is more popular right now is because it’s his generation, and he is a far newer and younger artist, his songs are in recent memory for young people. Just because Bieber is more popular at the moment, that don’t make his songs more populer over all. No artist can be relevant forever. Justin Timberlake is pretty old at this point, but over all - Justin Timberlake has been popular for far more years, and has had far more hits. Only time will tell who’s music will be the most remembered, though.
Timberlake has had more hits on Billboard, even though both artists have released the same amount of albums. Bieber has even released more albums than Timberlake if you count his EP, his Christmas album, Never say never, and several of his hits come from these recordings so they should be counted. Bieber has FAR more songs, and yet he has had less hits than Timberlake. And I’m only comparing their solo careers now. This is especially bad for Bieber, considering that Bieber spent his entire career as a solo artist, while Justin Timberlake spent many of his earlier years in a band and therefor had less time given to his solo career. If you only count their solo careers, then Justin Bieber should win easily, because he spent all of his career as a solo artist, while many of Timberlake’s earlier hits can’t even be counted because they come from his band that he speant so many years in. So this isn’t even a fair game, the game is rigged AGAINST Timberlake, and yet he wins even if you just count their solo careers, so this isn’t even a competition.
So yeah, even if you don’t count Justin’s years as a young tween idol, but you do count Bieber’s years as a young tween idol, Justin Timberlake still has more hits as a solo artist alone, even though that isn’t even including all of his career in music, while all of Justin Bieber’s career in music IS getting included because he was always a solo artist. And if you DO count Nsync and all the hits that Timberlake had with them, then Justin Timberlake COMPLETELY destroys Bieber in every way. Way more hits, way more album sales, way longer time in the spotlight, longer relevancy, and so on…
就酱…